A-eberle Relay Reg Da

8/21/2019 A-eberle Relay Reg Da

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REG-DA operating manual

Operating ManualREG-DARelay for Voltage Control & Transformer

Monitoring

Issue 18.10.07/03

Issue GB

Version 10.2007

Software Version


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REG-DARelay for Voltage Control & Transformer

Monitoring

Operating Manual

Issue 18.10.07

Copyright 2007 byA. Eberle GmbH & Co. KG..

All rights reserved.

Published by:

A. Eberle GmbH & Co. KG

Aalener Strae 30/32

90441 Nuremberg, Germany

Tel.: +49 (0) 911 / 62 81 08 - 0

Fax No.: +49 (0)-911 / 66 66 64

e-mail: [email protected]

Internet: www.a-eberle.de, www.regsys.de

The companyA. Eberle GmbH & Co. KGcannot be held liable for

any damages or losses resulting from printing errors or changes

in this operating manual.

Furthermore,A. Eberle GmbH & Co. KGdoes not assume

responsibility for any damages and losses resulting from

defective devices or from devices altered by the user.


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Table of Contents

1 Warnings and Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3 Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1 Basic equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2 Connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 Overview of features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4 Block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213.4.1 Block diagram for features D0/D1/D4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213.4.2 Block diagram for features D2/D3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.5 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.5.1 Pin assignment level I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

3.5.2 Pin assignment level II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.5.3 Pin assignment level III. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.6 Types of REG-DA Relay for Voltage Control & Transformer Monitoring . . . . . . . . . . . . . . . . . . . 443.6.1 Wall-mounting version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.6.2 Panel-mounting version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3.6.3 Mounting on Standard Mounting Rails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

4.1 Display and control elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474.1.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

4.2 Operating principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

4.3 Selecting the display mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

4.4 Lamp check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.5 Resetting fault signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.6 Operating the recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58


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5 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

5.1 Regulator mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

5.2 Measurement transducer mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

5.3 Recorder mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

5.4 Statistics mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

5.5 ParaGramer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

5.6 Choosing the language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

5.7 Setpoint value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

5.8 Permissible regulative deviation Xwz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

5.9 Time behaviour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

5.10 Backward high-speed switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

5.11 Tap-changer running time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

5.12 Knx transformer mounting ratios and transformer connection . . . . . . . . . . . . . . . . . . . . . . . . . 79

5.13 Setting the nominal current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

5.14 Inhibit low limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

5.15 Trigger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

5.16 Short description of individual limit values, setpoint values and permissible regulative deviation. 85

5.16.1 Description of the individual settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

6 Basic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 916.1.1 Station ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

6.1.2 Station name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

6.1.3 Setting the time/date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

6.1.4 LCD contrast (display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

6.1.5 Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

6.1.6 Deleting recorder data (resetting the measured value memory). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

6.1.7 Deleting tap-change sums (resetting the tap-counter to zero). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

6.1.8 Actual value correction of the measuring voltage UE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

6.1.9 Actual value correction of the measuring current IE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

6.2 RS-232 interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 976.2.1 COM 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

6.2.2 COM 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

6.3 E-LAN (Energy-Local Area Network). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

6.4 PAN-D voltage monitoring unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

6.5 Status (current ID data of the REG-DA Relay for Voltage Control & Transformer Monitoring). . . 104


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7 Parameterisation of the REG-DA Relay for Voltage Control & Transformer

Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

7.1 Permissible regulative deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1097.2 Time behaviour (regulation behaviour) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1097.2.1 Time factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

7.2.2 Time program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

7.2.3 Trend memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

7.3 Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1117.3.1 1st setpoint value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

7.3.2 Further setpoint values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

7.4 Programs (parameters for parallel regulation of transformers and for the compensation of the

voltage drop on the line) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1137.4.1 Selection of the parallel programs (regulation programs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

7.4.2 Parameters for the parallel program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

7.4.3 Current influence (line-drop compensation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

7.4.4 LDC parameter (line drop compensation). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

7.5 Gradient (U/I characteristic). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

7.6 Limitation (U/I characteristic). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

7.7 < U Undervoltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

7.8 > U Overvoltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

7.9 > I, < Limit (upper and lower current limits). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1187.10 Trigger inhibit high (highest limit value of the voltage). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

7.11 High-speed switching during undervoltage/overvoltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1207.11.1 High-speed switching when undervoltage occurs (RAISE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

7.11.2 High-speed switching when overvoltage occurs (LOWER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

7.12 REG-DA inhibit low when undervoltage occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

7.13 Time delays (limit signals). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1217.13.1 Time delay > U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

7.13.2 Time delay < U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

7.13.3 Time delay > I, < I limit value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1227.13.4 Time delay trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

7.13.5 Time delay forward high-speed switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

7.13.6 Time delay backward high-speed switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

7.13.7 Time delay inhibit low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124


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7.14 Add-Ons (Relay for Voltage Control & Transformer Monitoring behaviour). . . . . . . . . . . . . . . . 1247.14.1 Overview of the Add-Ons menus numbers 1 to 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

7.14.2 Maximum time TC in operation (motor-drive-in operation-time) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

7.14.3 Manual/Automatic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1277.14.4 Tap-changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128

7.14.5 Self-conduction of the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

7.14.6 Current display (of the transformer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

7.14.7 LCD saver (display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

7.14.8 Regulator mode: large display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

7.14.9 Language selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131

7.14.10 Parallel Program Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

7.14.11 Up/down relay on time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

7.14.12 AUTO(MATIC) LOCK in the event of an E-LAN error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

7.14.13 Setpoint adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

7.14.14 Creeping net breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134

7.14.15 Limit base (reference value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135

7.14.16 Setting the Relay for Voltage Control & Transformer Monitoring to inhibit low if I . . . . . . . . . . . . . . .136

7.14.17 Maximum tap difference (monitoring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

7.14.18 ParaGramer activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137

7.15 Transformer configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1387.15.1 Transformer mounting voltage (measurement voltage) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138

7.15.2 Transformer mounting ratio for the voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

7.15.3 Transformer mounting current (conductor connection) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

7.15.4 Transformer mounting current (conversion 1 A / 5 A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

7.15.5 Transformer mounting ratio for the current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141

7.16 Input assignments (binary inputs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

7.17 Relay assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

7.18 LED assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

8 Measurement Value Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

8.1 Setting the simulated voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

8.2 Setting the simulated current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

8.3 Setting the simulated phase angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1488.4 Setting the simulated tap-change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

9 Parallel Operation of Transformers with REG-DA . . . . . . . . . . . . . . . . . . . . . . . 150

9.1 Circuit diagram (schematic). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

9.2 Programs for parallel operation and their prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1549.2.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

9.2.2 Preparing manual activation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .156

9.2.3 Preparing automatic activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163

9.3 Parallel operation using the Master-Slave-Independent (MSI) procedure . . . . . . . . . . . . . . . 1739.3.1 Trouble-shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184


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10 Resistance Measuring Equipment for Tap-Changers with Resistance-Coded Tap-

Change Signalling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

10.1 Error detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18810.2 Level detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

10.3 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

10.4 Connection options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

10.5 Setting of the DIP switch S1 and S2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19110.5.1 Location of the switch on the circuit board: level 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

11 mA-Inputs, mA-Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

11.1 Analogue inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

11.2 Analogue outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

12 Updating the Operating Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

12.1 Preparing the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21512.1.1 Windows NT/2000/XP operating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

12.2 Starting the bootstrap loader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

13 Maintenance and Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

13.1 Cleaning information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

13.2 Changng fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22113.3 Changing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

13.4 REG-DA Current Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

13.5 Replacing the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

14 Storage Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

15 Background Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

15.1 Regulator mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

15.2 Command variable W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22715.2.1 Fixed command variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

15.2.2 Variable command variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

15.2.3 Current-dependent setpoint value increment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

15.3 Summary and Examples for Current Influencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

15.4 Regulative deviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23815.4.1 Regulative deviation Xw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

15.4.2 Permissible regulative deviation Xwz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

15.4.3 Displaying the regulative deviation Xw. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

15.4.4 Setting the permissible regulative deviation Xwz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

15.5 Monitoring extreme operating values (faults) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24115.5.1 Limit signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241


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15.6 Add-Ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24615.6.1 High-speed switching add-on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246

15.6.2 Relay for Voltage Control & Transformer Monitoring inhibit low function . . . . . . . . . . . . . . . . . . . . . . . . . .247

15.6.3 Measuring the Creeping Net Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24815.6.4 Maximum tap-change difference monitoring Add-On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250

15.6.5 Add-On: monitoring the tap-changer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250

15.7 Time behaviour of the Relay for Voltage Control & Transformer Monitoring when a control command

is output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25215.7.1 Determining the reaction delay tv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .255

15.7.2 Integrated time program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .259

15.7.3 Trend memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260

15.7.4 Const time program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .262

15.7.5 Setting the time factor Ft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .266

15.8 E-LAN (Energy Local Area Network) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

15.9 Voltage regulation with transformers operating in parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . 27115.9.1 Regulation programs for transformers operating in parallel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272

15.9.2 Functional principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273

15.9.3 Influence of the circulating current regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273

15.9.4 Activation of the regulation program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274

15.9.5 Description of the regulation programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275

15.10 Nominal transformation of the measurement transformers . . . . . . . . . . . . . . . . . . . . . . . . . . 292

15.11 Self-Conduct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293

15.12 LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29315.12.1 LCD contrast. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .293

15.12.2 LCD Saver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .293

15.12.3 Background illumination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .293

16 Definition of the Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

17 Symbols and their Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

18 Factory Settings of the Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

19 Notes on the Interpreter Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

20 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306

Appendix

Labels

Drill hole-pattern


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1 Warnings and Information

The REG-DA Relay for Voltage Control & Transformer

Monitoring is exclusively designed for implementation in

systems and equipment for electrical energy technology. Only

trained experts are permitted to carry out all required work.

Experts are persons who are familiar with the installation,

mounting, commissioning and operation of these types of

products. Furthermore, experts have qualifications which

correspond with the requirements of their field of work.

The REG-DA Relay for Voltage Control & TransformerMonitoring left the factory in a condition that fulfils all relevant

safety regulations. To maintain this condition and to ensure safe

operation, the following instructions and warnings in this

operating manual must be observed.


Monitoring has been designed to comply with IEC 10110/

EN61010 (DIN VDE 0411), degree of protection I and was

tested according to this standard before delivery.

The REG-DA Relay for Voltage Control & TransformerMonitoring must be earthed via a protective earth

conductor. This condition is fulfilled when the Relay for

Voltage Control & Transformer Monitoring is connected to

an auxiliary voltage with a protective earth conductor

(European power supply system). If the auxiliary voltage

power supply system does not have a protective earth

conductor, an additional connection must be established

from the protective earth conductor terminal to earth.

The upper limit of the permissible auxiliary voltage UAUXmaynot be exceeded, neither permanently nor for a short period

of time.

Before changing the fuse, separate the REG-DA Relay for

Voltage Control & Transformer Monitoring completely from

the auxiliary voltage UAUX.

The use of fuses other than those of the indicated type and

rated current is prohibited.

A REG-DA Relay for Voltage Control & Transformer

Monitoring which displays visible damage or clearmalfunctioning must not be used and has to be secured

against unintentionally being switched on.


10/31610

REG-DA


Maintenance and repair work on a REG-DA Relay for

Voltage Control & Transformer Monitoring with an open

door may only be carried out by authorised experts.

Warning signs

Please familiarise yourself with the nominal insulation voltage of

the Relay for Voltage Control & Transformer Monitoring before

connecting the device.

Ensure that the voltages are connected via a disconnecting

mechanism, and that the current path can be short circuited if

there is a device fault to enable problem-free device

replacement.

When wiring, please ensure that the conductors are either

bound short or kept sufficiently short so that they cannot reach

level 2 or 3.

If a fault occurs (connection becomes loose), no line that carries

a voltage that is dangerous when touched (> 50 V) or line to

which a nominal isolation voltage larger than 50 V is assigned,

may come into contact with the circuits in levels 2 and 3.

!


11/31611

REG-DA


2 Scope of Delivery

1 REG-DA Relay for Voltage Control & Transformer Monitoring,

with built-in components

1 terminal diagram in English

1 operating manual in English

1 WinREG programming and parameterisation software

1 cable

1 replacement fuse

2 tools

(7 mm Allen key and special screwdriver for the terminals on

levels 2 and 3)


12/31612

REG-DA


3 Technical Data

3.1 Basic equipment

Dimensions

Lead sealing Each Relay for Voltage Control & Transformer Monitoring canbe locked with a password so that the parameters cannot be

changed.

The REG-DA can also be lead-sealed to show whether it has

been opened by unauthorized persons.

For this purpose, a lead-sealing wire is pulled diagonally

through the bores in the lower right corner of the housing corner

and is secured with a lead-sealing tool.

This measure ensures that the device can only be opened by

breaking the lead seal.

Dimensions in mm


13/31613

REG-DA


Connection levels

Side view (section) of opened housing

NoteReference is made to the connection levels (levels I...III)

in both the block diagram (Page 21) and the pin

assignment (Page 23).

Membrane keypad

area III

area II

area I


14/31614

REG-DA


3.2 Connection diagram

Contact load R1, R2: AC 250 V, 5 A, cos= 1,250 V DC, 150 W

* Please observe the contact load at R1 and R2!

(see below)!

** The connections for I and U can be freely assigned

via the menu.

110 V DC 230 V AC

20 A Switch on 5 A @ cos= 1

5 A Hold 3 A @ cos

= 0.4

0.4 A Switch off


15/31615

REG-DA


3.3 Overview of features

REG-DA is a highly variable product.

The operating manual must take this factor into account andprovide different descriptions for the for the various

specifications.

Because the features ... M2, S1... D4 ... are noted on the name

plate of the device, but the relation to the function which it

stands for is not always given, the complete structure of the

device's features is listed here.

Feature: ID

REG-DA Relay for Voltage Control & Transformer

Monitoring

Basic version with E-LAN double interfaces,

COM 2, COM 3 and a mA input channel for e.g.

measuring the oil temperature

or for the measuring of the tap-changer position using

a measurement transducer

with 16 binary inputs and 12 relay outputs plus status

outputinclusive of WinREG parameterisation software for

parameterisation, programming

and displaying of all Relay for Voltage Control &

Transformer Monitoring data incl. connecting cable

Note: COM 2 is only freely accessible

if a log connection is not required.

REG-DA

Design

Panel-mounting or wall-mounting version

(H x W x D) 307 x 250 x 102 mm

with standard mounting rail adapter

B0

B1

Current supply

external

85 V ... 110 V ... 264 V AC / 88 V ... 220 V ... 280 V DC

external 18 V ... 60 V ... 72 V DC

H0

H2

Input currents (can be changed later)

IEN1A

IEN5A

F1

F2


16/31616

REG-DA


Measurement transducer display functions for network

quantitiesThree-phase current with balanced load

Three-phase current with unbalanced load

Voltage (HV-side), current and voltage (MV-side)

measurement

Other uses of the three current and two voltage

transformers

M1

M2

M3

M9

Recorder functions

for network quantities with evaluation software

WithoutWith S0S1

Transformer monitoring

Without

With

T0

T1

Parallel operation

Without firmware for parallel operation

With firmware for parallel operation

K0

K1

Feature: ID


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Additional analogue inputs and outputs

WithoutWith one a PT 100 input

With two mA inputs

With two mA outputs

With one PT 100 input and one mA output

With two mA inputs and one mA output

With three mA outputs

Tap-change potentiometer input

Total resistance 200 Ohm ... 2 kOhm

Tap-change potentiometer input

Total resistance >2 kOhm ... 20 kOhmOther combinations of inputs and outputs

Note about E91 ... E99:

Please specify the scale if known!

Example: 1 -100 ... 0 ... +100 MW

-20 ... 0 ... +20 mA

Example: 2 0 ... 80 ... 120 V

4 ... 16 ... 20 mA

Example: 3 1 ... 19 levels

0 ... 20 mA

Example: 4 50 ... 140C

4 ... 20 mA

E00E91

E92

E93

E94

E95

E96

E97

E98E99

Feature: ID


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Binary inputs and tap-changer potentiometer input

16 binary inputs 48 ... 250 V AC/DC8 binary inputs 10 ... 48 V AC/DC

and 8 binary inputs 48 ... 250 V AC/DC

1 tap-change potentiometer input

(total resistance 200 ... 2 kOhm)



(total resistance >2 ... 20 kOhm)


16 binary inputs 10 ... 48 V AC/DC

1 tap-change potentiometer input(total resistance 200 ... 2 kOhm)



(total resistance >2 ... 20 kOhm)


D0D1

D2

D3

D4

D5

D6

Level II: additional inputs and outputs

Without

With 6 binary inputs 48 ... 250 V AC/DC

With 12 binary inputs 48 ... 250 V AC/DCWith 6 relay outputs

With 12 relay outputs

With 6 binary inputs and 6 relay outputs

With 2 analogue inputs

With 4 analogue inputs

With 2 analogue outputs

With 4 analogue outputs

Other combinations 6 inputs, 6 outputs, 2 analogue

inputs, 2 analogue outputs

Note about C90: Two terminals are normally available

on level II.

Each terminal can be equipped with either 6 binary

inputs, 6 binary outputs or an analogue module.

Either 2 inputs or 2 outputs are available per analogue

module.

Up to 4 additional modules can be equipped assuming

that a control system connection (XW90, 91 or L1, L9)

is not used.

C00

C01

C02C03

C04

C05

C06

C07

C08

C09

C90

Feature: ID


19/31619

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Integrated control system connection according to:

IEC61850 or IEC 60870- 5-104Without

IEC 60850 - 5 - 104 (more in feature group G)

Note: Please specify the target system for connections

according to IEC 60850-5-104

IEC 61850 (more in feature group G)

XW00

XW90

XW91

Integrated control system connection according to: IEC

60870- 5-101/ ..-103,DNP

Without (more in feature group G)

for the control system connection of a REG-DAFor the control system connection of multiple systems

(REG-D/DA/DP, etc.)

Note: L9 can only be combined with feature XW90,

Z15 to Z19 and Z91.

L0

L1L9

Type of connection:

Copper RS 232

RS 485 only for 2-wire operation

Fibre-optic cable with FSMA connection system

Glass fibre(Wavelength 800...900 nm, range 2000 m)

Plastic fibre

(Wavelength 620...680 nm, range 50 m)

Fibre-optic cable with ST connection system

Glass fibre


Plastic fibre


V10

V11

V13

V15

V17

V19

Feature: ID


20/31620

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Log:

IEC60870-5-103 for ABBIEC60870-5-103 for Areva

IEC60870-5-103 for SAT

IEC60870-5-103 for Siemens (LSA/SAS)

IEC60870-5-103 for Sprecher Automation

IEC60870-5-103 for others

IEC60870-5-101 for ABB

IEC60870-5-101 for IDS

IEC60870-5-101 for SAT

IEC60870-5-101 for Siemens (LSA/SAS)IEC60870-5-101 for others

DNP 3.00

LONMark

SPABUS

MODBUS RTU

Z10Z11

Z12

Z13

Z14

Z90

Z15

Z17

Z18

Z19Z91

Z20

Z21

Z22

Z23

Operating Manual

German

EnglishFrench

Spanish

Italian

Russian

Other

G1

G2G3

G4

G5

G6

G9

Display text

German

English

French

SpanishItalian

Russian

Other

A1

A2

A3

A4A5

A6

A9

Feature: ID


21/31621

REG-DA


3.4 Block diagrams

3.4.1 Block diagram for features D0/D1/D4


22/31622

REG-DA


3.4.2 Block diagram for features D2/D3


23/31623

REG-DA


3.5 Pin Assignment

Signals with non-exposed voltages are connected first of all on

level I.All of the circuits on level I have a nominal insulation voltage of

> 50 V and are therefore considered to be non-exposed in

accordance with VDE 0110 (exception: resistance input,

feature D2/D3).

Please observe this condition even if small voltages are present

at the relay contacts or the binary inputs.

Terminal area on connection level III

Terminal area on connection level I

Terminal area on connection level II


24/31624

REG-DA


*) The Relay for Voltage Control & Transformer Monitoring with

feature M1 provides only one voltage input. One voltage

transformer is sufficient for standard regulating functions.

When carrying out measurements in arbitrarily-loaded three-

phase current systems, the three external-conductor voltages

must be connected to terminals 2, 5 and 8 (Feature M2).

Triple-wound applications function with two separate input

voltages U1and U2.

LevelI

No. M1 * M2 * Triple*-

woundregulator

2 Voltage inputU1

UL1U1

5 Voltage input UL2

8 Voltage input

UL3U2

10 Voltage input

1 kCurrent input I1

3 I4 k

Current input I26 I

7 kCurrent input I3

9 I

21 L / (+)Auxiliary voltage

22 L / (-)


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NoteAll of the inputs and relay outputs are freely

programmable, with the exception of inputs 5 and 6 and

the outputs R1, R2, R12and R13.

The assignment specified in the terminal diagramcorresponds to the delivery state and can be changed if

necessary.

LevelI

No. D0, D1, D4 D2, D3

11 Input 1 Tap-changer in progress

12 Input 2 Freely programmable



15 Input 1...4 GND

16 Input 5 AUTO / MANUAL -

AUTO

(see Page 127)17 Input 6 MANUAL



20 Input 5...8 GND

23 Input 9 BCD 1

please also

refer to Page

34

24 Input 10 BCD 2

25 Input 11 BCD 4

26 Input 12 BCD 8

27 Input 9...12 GND

28 Input 13 BCD 10

29 Input 14 BCD 20

30 Input 15 BCD signal


32 Input 13 ... 16 GND


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LevelI

No.

33Freely programmable R5

34


36


38

39

Lower R240

41

42

43

Raise R144

45

4647 > I R11

48 >U R10

49


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LevelII

No.

IEC

LON

DNP 3.0

SPA bus

Modbus

For additional equipping possibilities for level II see "Pin

assignment level II" on page 35.

The connections of the control system can be found in the

information attached to the operating manual.

LevelIII

No.

63 mA input +A1 (standard equipment)

64 mA input -

61 Input or

output

+

A2

62 Input oroutput

-

65 Input or

output

+

A366 Input or

output

-

67 Input or

output

+

A4

68 Input oroutput

-

65

66

68

Pt100


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LevelIII

No.

69 E-

E-LAN (L)70 E+

71 EA-

72 EA+

73 E-

E-LAN (R)74 E+

75 EA-

76 EA+

77 Tx +

COM 3 (RS 485)78 Tx -

79 Rx +

80 Rx -

81 du dont use

82 TxD

COM 2 (RS 232)

83 RxD

84 RTS

85 CTS

86 GND


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3.5.1 Pin assignment level I

3.5.1.1 Auxiliary voltage, current input and voltage input

Terminals 21, 22 and 1 to 10


Monitoring is equipped for carrying out measurements in

arbitrarily loaded three-phase current networks. Therefore, up

to three current transformers are available.

Voltage regulation generally only requires a single-phase

connection (one delta or phase voltage and one line current),because it may be assumed that the network conditions at the

transformer are approximately symmetrical (feature M1).

If a more precise measurement of the outputs (P, Q, S) is

required, it is possible to switch over to the Aron circuit. In this

case, two voltages and two currents must be connected

(feature M2).

The third current input is reserved for special cases, which must

be coordinated before the device is delivered.


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Auxiliary voltage (terminals 21 and 22)

The protective earth must be connected first, because the

REG-DA is a device with degree of protection I.

A plug-in shoe (6.3 x 0.8 mm) is provided in the lower part of

the housing for connecting the protective earth.

The auxiliary voltage is supplied via the twin connector block

(terminals 21 and 22).

Two types of power supply units are available:

Therefore, please ensure that the intended supply voltage

corresponds to the auxiliary voltage of the device as stated on

the printed nameplate, before connecting.

Feature H0:

Both direct and alternating voltages may be connected.

Ranges: 88 V ... 220 V ... 280 V DC

85 V ... 110 V ... 264 V AC

Power consumption: < 15 VA

Feature H1:

18 V ... 60 V ... 72 V DC

Power consumption: < 10 W

The auxiliary voltage, and thus the power supply of the device,

is protected by a T2L 250 V microfuse.The fuse holder can be opened with a screwdriver. The device

is supplied with a spare fuse.

Flat-plug

connection

for protective

earth


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NotePlease note that the fuse catch should never be

screwed on without having a fuse inserted, because

otherwise it is difficult to open the fuse holder.

3.5.1.2 Control voltage

(Terminals 2, 5 and 8, 10)

The control voltage must be connected to the terminals 2 and

5.

Any voltage from the three-phase current network can be used

as the control voltage. The type of voltage (delta or phasevoltage, UL1L2, UL2L3, UL3L1, U1N, U2N, U3N) must be

communicated to the Relay for Voltage Control & Transformer

Monitoring via the menu (SETUP 5, F2).

The permissible nominal application range of the control voltage

ranges from 60 to 140 V and is expressed in terms of delta

voltage.

If there is a connection between the phase and N, the nominal

application range of 34.6 to 140 V becomes available.

Please note that a single-pole high-resistance earth connection

affects L1 like a voltage dip if only a phase voltage (e.g. L1N) is

available for measuring the actual value of the voltage.

If a phase voltage is used as the control voltage rather than the

recommended delta voltage, you must pay attention to the

behaviour if a single-pole earth fault occurs.

In high-resistance faults, situations may occur where the

voltage appears to be too high or too low.

The Relay for Voltage Control & Transformer Monitoring

generally switches itself into standby mode for low resistancefaults.

Strongly distorted signals may also be connected by means of

a complex filtering of the measurement voltages and the

measurement currents.

If feature M2 is used, voltage UL1must be connected to terminal

2, voltage UL2to terminal 5 and voltage UL3to terminal 8.

i.e.:UL12UL25UL38


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Voltage inputs U1 and U2 are both available for triple-wound

applications.

In each case, this is a special version for the triple-wound

application, each of which is described separately.

3.5.1.3 Current inputs

(Terminals 1, 3 and 4, 6 and 7, 9)

A connection to a power supply is not required for normal

regulator operation.

In many cases, however, the voltage must be raised and/or

lowered according to the respective load.It is necessary to connect the current transformer I1 (1 and 3)

to carry out this additional task.

However, even without current-dependent regulation, we

recommend connecting the current, because this means that

network can be measured and displayed in the measurement

transducer mode.

Ensure that the correct connection (k, l!) is used when

connecting the current transformer.

Two current transformers must be connected for carrying out

measurements in arbitrarily loaded three-phase networks.

The third current can be calculated on the basis of both of the

measured currents. The third current connection (4, 6) is

reserved for special cases, which will be described separately.

The changeover from 1 A to 5 A or vice-versa is accomplished

via the menu. The use of hardware such as a bridge or jumper

is not necessary.

Caution!Please observe that the line(s) must be short-circuited

before releasing the lines on terminals 1/3, 4/6 and 7/9.


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3.5.1.4 Relay outputs

(Terminals 33 ... 59)

The REG-DA Relay for Voltage Control & TransformerMonitoring has 13 relays.

Relay 13 is used as a life contact and monitors the running of

the processor as well as the supply voltages of the system.

Relays 1 ... 12 are available for regulating and controlling the

transformer.

Relays R1, R2 and R12 are permanently assigned to specific

functions, whereas all of the other relays are freely

programmable. The relays are programmed with frequentlyused functions when delivered.

R1 ... R13: Potential-free relay contacts

Load: 250 V AC, 5 A, cos= 1,250 V DC, 150 W (also refer to

Page 14)

Relays R1 and R2 may be switched as follows in order to lock

a control command:

R1

Raise

R2

Lower


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3.5.1.5 Binary inputs, feature D0/D1


The REG-DA Relay for Voltage Control & TransformerMonitoring has 16 binary inputs.

Only inputs 5 and 6 (Manual/Automatic) are permanently

assigned. All of the other inputs can be programmed freely.

Frequently used input functions are already assigned to some

of the inputs when it is delivered (see table on page 24 to page

26).

3.5.1.6 Binary inputs and resistance inputsfor tap-change potentiometer (D2/D3)


Only binary inputs 5 and 6 (Manual/Automatic) are permanently

assigned. All of the other binary inputs can be programmed

freely. Frequently used input functions are already assigned to

some of the inputs when it is delivered (see table on Page 24 to

Page 26).

Feedback of the tap-change position is often sent back to theRelay for Voltage Control & Transformer Monitoring as a BCD

code.

The binary inputs are parameterised to correspond with the

number of steps in this case (see "Binary inputs, feature D0/D1"

on page 34, terminals 23 to 32).


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If the tap-change position is supplied as a resistance value (e.g.

10 Ohm / tap-change position), the resistance module can be

connected directly to terminals 23 to 26.

For further information see "Resistance Measuring Equipment

for Tap-Changers with Resistance-Coded Tap-Change

Signalling" on page 187:

3.5.2 Pin assignment level II

Level II is not equipped in the standard version of the Relay for

Voltage Control & Transformer Monitoring.

However, a larger number of additional inputs and outputs can

be provided via this connection level if additional binary or

analogue inputs/outputs are required.

The equipment changes according to features C01 to C99.

A total of four different modules are available, that can be used

in any combination if required.

Module 1: 6 binary inputs

Module 2: 6 relay outputs

Module 3: 2 mA inputs

Module 4: 2 mA outputs

The connection assignment of the individual features can be

found in the terminal diagram.


36/31636

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Feature C01

6 additional binary inputs 48 ... 250 V AC/DC

Feature C02

12 additional binary inputs 48 ... 250 V AC/DC

No.

Module1

100 Binary input E17






106 GND E17 ... E22

No.

Module1







106 GND E17 ... E22

Module1







113 GND E23 ... E28


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Feature C03

6 additional relay outputs (NO contacts)

Feature C04

12 additional relay outputs (NO contacts)

No.

Module2

100 R14

101 R15

102 R16

103 R17

104 R18

105 R19

106 GND R14 ... R19

No.

Module2

100 R14

101 R15

102 R16

103 R17

104 R18

105 R19

106 GND R14 ... R19

Module2

107 R20

108 R21

109 R22

110 R23

111 R24

112 R25

113 GND R20 ... R25


38/31638

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Feature C05

6 additional binary inputs 48 ... 250 V AC/DC and

6 relay outputs (NO contacts)

Feature C06

2 additional analogue inputs

No.

Module1







106 GND E17 ... E22

Module2

107 R14

108 R15

109 R16

110 R17

111 R18

112 R19

113 GND R14 ... R19

No.

Module

3100

Analogue input+

E10

101 -

102Analogue input

+E11

103 -


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Feature C07

4 additional analogue inputs

Feature C08

2 additional analogue outputs

Feature C09

4 additional analogue outputs

No.

Module3

100Analogue input

+E10

101 -

102Analogue input

+E11

103 -

Mod

ule3

104Analogue input

+E12

105 -

106Analogue input

+E13

107 -

No.

Module

4100

Analogue output+

A10

101 -

102Analogue output

+A11

103 -

No.

Module4 100 Analogue output + A10

101 -

102Analogue output

+A11

103 -

Module4

104Analogue output

+A12

105 -

106Analogue output

+A13

107 -


40/31640

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The hardware for all the control system connections is also

contained on level II.

The corresponding connection elements on level II must be

used for RS232 or RS485 connections.If the Ethernet connection is used (required for IEC 61850 or

IEC 60870-5-104 connections!), the corresponding connection

is also accessible on level II.

Please refer to the configuration documentation supplied with

this operating manual, since the terminal assignment can be

very different for the individual interfaces.

The connection elements for fibre-optic cables (send and

receive diodes as ST or FSMA connection) are mounted directly

on the flange plate and can be connected there withoutopening the device.

Fibre-optic cable connection

(FSMA-connection system)

Fibre-optic cable connection

(ST-connection system)


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3.5.3 Pin assignment level III

It is possible to access interfaces COM 1, COM 2 and COM 3

via level III.

The connection elements for the E-LAN transport bus and

certain combinations of analogue inputs and outputs (Features

E91 to E99) are also available via level III.

Interface COM 1

Function Pin

DCD 1

RXD 2

TXD 3

DTR 4

Signal-Ground 5

DSR 6

RTS 7

CTS 8

RI 9


42/31642

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Equipping analogue inputs is dependent on the selected

structure of the features.

Both mA inputs and mA outputs may be implemented.

A module can be supplied for measuring the oil temperature

(transformer monitoring), which can be directly attached to a PT

100.

The connection is designed as a three-conductor circuit andcan be used over a distance of approximately 100 m.

The inputs can operate continuously in a short-circuited or

open state. All inputs are electrically isolated from all of the other

COM 2, suitable for

connecting:

- Modem

- PC

- DCF 77

- E-LAN-L

- E-LAN-R

COM 3, only suitable

for connecting BIN-D

and ANA-D interface

components!

optional


43/31643

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circuits. The Relay for Voltage Control & Transformer

Monitoring is equipped with one analogue input as standard.

The type of use can be specified at the time of ordering, or a

specific measurement quantity can be assigned using WinREGor the device's keyboard.

The outputs can operate continuously in a short-circuited or

open state. All outputs are electrically isolated from all of the

other circuits.


44/31644

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3.6 Types of REG-DA Relay for Voltage Control &Transformer Monitoring

3.6.1 Wall-mounting version

The mounting bars provided must be screwed onto the rear of

the device.

The entire unit must be attached with suitable screws to/onto a

stable mounting surface.

If the mounting holes are drilled laterally, both mounting barscan also be folded inwards (see shaded area).

NotePlease note and use the enclosed hole pattern (last

page).

Mounting bars

Dimensions in mm


45/31645

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3.6.2 Panel-mounting version

After the cutout has been cut in the mounting panel, the four

grub screws (1) must be screwed into the bottom of the

housing. The device is then pushed through the cutout and is

fixed with the two clamping angles (2).

In general, it is advisable to remove the flange plate first, then

push the housing through the cutout.

(1)

(2)(2)

(1)


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3.6.3 Mounting on Standard Mounting Rails

The Relay for Voltage Control & Transformer Monitoring can

also be mounted on 35 mm standard mounting rails.


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4 Operation

4.1 Display and control elements

The MPC operation level (people-process communication) of

the REG-D Relay for Voltage Control & Transformer Monitoring

is implemented as a membrane keypad with integrated light-

emitting diodes (LEDs).

Indicators and labels

Seven labels are available. Each label is designed for two

signals (2 LEDs).

The labelling of each individual field may be changed at any time

by pulling the label strip downwards out of the clear vinyl

pocket.

Function keys

Indicators

Field

Label

Parameterisation

FieldTransformer control

LCD displayLEDField 1

LEDField 7

.

.

.

.

.

.

.

.

Label strips


48/31648

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NoteFurther label strips can be found in Annex 2.

A program for generating label strips called

Beschriftungsprogramm.xlscan be found on the programCD.

If you have a colour printer at your disposal, the

individual fields can even be printed in colour (yellow and

red).

Any standard pen can be used to write on the labels.

Indicator 1 is programmed as default and cannot be changed.

LED 1 in field 1 (green) lights up when the device is

operating fault-free (service).

LED 2 in field 1 (red) lights up when the device has a fault

(blocked).

The LEDs in field 2 to field 5 (yellow) are freely

programmable for general signalling, and are not

programmed when delivered.

The LEDs in field 6 to field 7 (red) are freely programmable.

They are primarily intended for fault signals and are not

programmed when delivered.

Transformer control panel

7 keys are assigned to the transformer control panel.

The AUTOMATIC key with an integrated green LED

lights up when the Relay for Voltage Control & Transformer

Monitoring is functioning in the Automatic operating mode.The Manual key with integrated red LED lights up

when the Relay for Voltage Control & Transformer Monitoring is

functioning in the manual mode.

The arrow keys Raise and Lower

can be used to manually select the taps of the transformer.

Prerequisite: The LOCAL key (red)

is activated.

All remote control commands via binary inputs or a serial

connection are suppressed when in the LOCAL setting.

Remote control is only possible in the REMOTE mode (green).


49/31649

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Monitoring was designed in such a way that all of the display

elements of the transformer control panel (Manual/Auto and

Local/Remote) have to be green when the operatingpersonnel leave the control room.

The ACK key is currently still out of operation.

In the future, this key will be able to be used to acknowledge

process signals and/or fault signals which the Relay for Voltage

Control & Transformer Monitoring generates itself and indicates

in the display.

Parameterisation panel

The keys in the parameterisation panel can be used to manually

parameterise the REG-DA Relay for Voltage Control &

Transformer Monitoring.

The Menu key is used to switch between the various

operating modes and to select a specific parameterization

menu (SETUP 1 ... SETUP 6)

The Return key is used to confirm a specific

parameter in the SETUP menus.

NoteChanges to the parameterisation which are important

for operation can only be carried out in the manual

operating mode.

The Esc key is used to exit any menu. The user can

move the cursor within the parameterisation menus using the

and keys.

Function keys

The function keys, F1 to F5 , are

implemented as so-called softkeys.

The function of the keys is context-controlled and depends on

the corresponding menu.


50/31650

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4.1.1 Display

LCD display

LCD Display Recorder Mode

Address at bus (station identification) Relay name Time

Setpoint value inSetpoint value in

regulative deviation

Backwards high-speed switching is indicated by


51/31651

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4.2 Operating principle

The operation of the REG-DA Relay for Voltage Control &

Transformer Monitoring is completely menu-guided and theprinciple is the same for each item in the SETUP menu.

The following operating principle applies for setting or changing

the regulation parameters:

MANUAL OPERATING MODEchanges the operating mode to

manual operation

MENU displays the list of operating modes

MENU selects the SETUP menu item

MENU can be used to scroll through the pages of

the SETUP menu selection until the required parameter

appears on the display.

Select a parameter via the corresponding function key

(F1 ... F5).

Set the value of the parameter via the function keys.

F1 increases the value in large steps

F2 increases the value in small steps

F4 increases the value in small steps

F5 decreases the value in large steps

F3 has a special function in some of the SETUP

menus.

After entering a value, the changed value is confirmed by

pressing RETURN .

If the entry is protected with a password, enter the

password (see "Password request" on page 95).

Return or leave the SETUP menus

ESC (CANCEL)

The SETUP menus will be automatically exited if no key ispressed for approx. 15 seconds.


52/31652

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Monitoring can be switched back to the automatic

operating mode using AUTO once the required

parameters are entered, checked and individually

confirmed by pressing the RETURN key.

4.3 Selecting the display mode

The display modes of the REG-DA Relay for Voltage Control &

Transformer Monitoring can be selected after pressing the

MENU key.

The following modes are available:

Regulator Mode

Measurement transducer mode

Recorder mode

Statistics mode (Monitor mode)

ParaGramer mode

Regulator Mode The F1 key is used to select the RegulatorMode.

The display indicates the set setpoint

value in V (kV) and as a percentage of

the nominal voltage, the momentary

actual value, the value of the

permissible regulative deviation and the

present tap-changer position of the

tap-changing transformer.

The present deviation of the setpoint is

also indicated on a scale (by an

analogue pointer) with a bandwidth of 10%.

The colour of the scales pointer changes from transparent

to black if the specified permissible regulative deviation is

overshot or undershot.


53/31653

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If required, the present value of the current may also be

displayed.

Note If Actual Value is displayed in capital letters, i.e.

ACTUAL VALUE, then the MEASUREMENT VALUE

SIMULATION is active!

(see Page 146).

Measurement

transducer

mode

The F2 key is used to select the Measurement

Transducer Mode.

When the Relay for Voltage Control & Transformer Monitoring

carries out measurements in the Aron circuit (feature M2), a

second measurement transducer screen can be selected todisplay the measured values of the three-phase current

networks loaded according to the requirements of the user.

NoteIn the measurement transducer mode, only the reactive

current I sinof each transformer will be displayed.However, it is not possible to determine on the basis of

this display which share of the current pertains to the

load and which pertains to the reactive current.

The second measurement transducer screen can be selected

by pressing either the or key.


54/31654

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The third transducer screen may be selected by pressing either

the or key.

If the device is switched in parallel, it is advantageous to display

the circulating reactive current as well.

The circulating current Icirc provides information about the

share of the current that is circulating in the parallel-switched

transformers and not taken up by the load.

The quasi-analogue scale illustrates the relationship between

the circulating reactive current Icirc and the permissible

circulating reactive current perm. Icirc.

If the permissible Icirc is 50 A, the circulating reactive current

Icirc is actually -100 A and the value -2 is shown on the scale.

If the circulating current becomes zero, the quotient will also

become zero and the pointer will be positioned in the middle of

the scale.

However, generally speaking, this ideal situation can in practice

only then be reached when the parallel-switched transformers

exhibit the same electrical features.

Recorder mode The F3 key is used to select the RecorderMode.

As standard, every Relay for Voltage

Control & Transformer Monitoring is

equipped with a DEMO recorder

(feature: DEMO in the lower left corner

of the grid).

Above the grid, the set permissibleregulative deviation is displayed by

means of two black arrows. In this

manner, the recorder display is capable


55/31655

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of supplying all of the information needed for operating the

Relay for Voltage Control & Transformer Monitoring (see "LCD

Display Recorder Mode" on page 50).

In addition to the value of the present voltage and the tap-

changer position (in the lower left-hand corner), the display also

indicates the permissible regulative deviation (black arrows

above the grid) and the change of the voltage over a period of

time (past values).

Within the grid, the present voltage is the value which intersects

the lower line of the two parallel border lines at the top of the

grid.

Independent of the selected feedrate speed (F4), the memorystores values at a constant rate of 1 second.

Each 1 second value is composed of 10 100ms values.

Seven scale divisions are available in total on the display. Thus,

a maximum time range of 7 x 10 minutes (70 minutes) may be

shown on the screen.

The shortest time range with the biggest optical resolution is 7

x 14 seconds (98 seconds).

Apart from the voltage, the recorder can also record the currentand the angle . The tap-changer position and the setpointvalue with tolerance band are always recorded as well.

In the second recorder menu (F3-F3), the desired mode can be

selected via the menu item Number of channels (F4). It is

possible to change modes at any time without loss of data.

Displaying the recorder data

In the first recorder menu (F3), the menu item Dual Display (F4)

can be used to switch the recorder display between the one-

channel display of U and the two-channel display. The leftchannel is always reserved for the control voltage U. The Relay

for Voltage Control & Transformer Monitoring offers a selection

of measurement quantities for the second channel (see 2nd

recorder menu).

The time axis is the same for both curves. Only the resolution of

the left channel can be changed using the dx (F5 key); the

scale of the second channel remains the same.


56/31656

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Derived variables from the recorder data

In the first recorder menu (F3,F3), the

menu item MMU display (F5) can be

used to switch the display of variables

derived from the present cursor value

(at the very top) on and off.

I and S are displayed as numeric values

if only two recorder channels (U + I)

have been selected (second recorder

menu (F3, F3, F4)).

If all three recorder channels (U + I + ) are activated, then I, ,P and Q will be displayed as numeric values.

It is also possible to search for an event in the second recordermenu. If both the date and the time of a certain event are

known, a specific day and time can be selected in the Time

Search submenu.

After returning to the recorder main menu (by pressing F3 or

Enter), the recorder lists the selected time and displays all of the

electrical measurement values as well as the corresponding

tap-changes.

Statistics mode The F4 key is used to select the StatisticsMode.

The total number of tap-changes made

since the counter was last set to zero is

shown on the display. Thus tap-

changes made under load and tap-

changes made with a load of less than

5% of the nominal current In(1 A or 5 A)

are distinguishable.

Changes made under load areadditionally displayed for each tap-

change.

NoteIf the tap-changer is working under load (I > 0.05 In), adouble arrow >> indicates the present tap-changer

position.

If the load condition is not fulfilled, the present tap-

changer position will be indicated by a single arrow >.

In conjunction with the recorder, the statistics mode provides

valuable information regarding the controlled system.


57/31657

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The parameters Time factor and Permissible regulative

deviation can be used to reach an optimum between the

voltage stability and the number of tap-changes. However, this

relation cannot be calculated mathematically as it is subject tothe individual conditions at the respective feeding point.

ParaGramer F5 selects ParaGramer mode.

The ParaGramer is a tool used for

automatically preparing parallel

connections and for the one-line

display of the switching status.

The artificial word ParaGramer is

derived from the terms

parallel and one-line diagram.

The ParaGramer displays the switching

status of the individual transformers in one-line graphics and

can be loaded by pressing the F5 key in the main menu.

The function is activated by feeding a complete busbar replica

(positions of the circuit breakers, disconnectors, bus ties and

bus couplings) into each Relay for Voltage Control &

Transformer Monitoring by means of binary inputs.

On the basis of the switching statuses, the system can

independently recognise which transformer should work in

parallel operation with which other transformer(s) on a busbar.

The system treats busbars connected via bus couplings as one

single busbar.

As shown in the graphic, both transformers T1 and T3 are

working on busbar a, whereas transformer T2 is feeding on

busbar b.

If special crosslinks are needed

between the busbars, we recommend

that you contact the headquarters of

our company A. Eberle GmbH & Co.

KG for assistance, since it is not

possible to describe all the options in

this operating manual.

The crosslinks feature is depicted in

the graphic. With its assistance, two

busbars may be coupled crosswise.

Crosslink


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Setup menus MENU selects the SETUP men 1

4.4 Lamp check

Press the F5 key to check the functions of the light-

emitting diodes on the front panel. Select F5 .

NoteThis check can only be carried out in the Regulator

Mode or Statistics Mode.

4.5 Resetting fault signals

To reset fault signals that occur, the operating mode must be

changed from AUTOMATIC to MANUAL and then back to

AUTOMATIC again.

4.6 Operating the recorder

F1 and F2 allow access to historical values.

The time and date corresponding to a particular event can be

found by setting the voltage-time diagram back to the time-

reference line (beginning of the grid at the top) using the F1

and F2 keys. The time, date, voltage value and

tap-changer position can then be read below the grid.

If historical data is displayed, the term HIST appears in the

lower left-hand corner of the grid. Display of past measurement

values may be aborted at any time by pressing the ESC

(CANCEL) key.

Press F3 to go to the recorder 1 menu. The scroll

displacement for searching using the F1 and

Time reference line


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F2 keys (in recorder mode) can be set using the scroll

menu item. This helps to speed up the search procedure. It is

also possible to switch back and forth between Dual Display

and MMU display in the Recorder -1 menu.

Pressing the F3 key in the Recorder -1 menu will take

you to the Recorder -2 menu. In this menu a specific search

date and time can be set under the menu item Time Search.

The type of display (U, U+I, U+I+Phi, U+U2, U+OilT, U+WndT)

can be selected under the menu item Channel Display.

The time-line diagram for the selected point in time appears

after returning to the recorder mode again by pressing F3

.The Recorder 1 and Recorder 2 menus display the present

memory capacity status in % as well as in days.


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The feedrate speed can be selected by pressing the F4

key. Four different times can be selected: 14 s, 1 min, 5 min, 10

min.


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The dt values refer to the time which must pass before a scale

section (division) is recorded.

The scale of the 1st channel can be changed using the

F5 dx key.

An extension of WinREG permits the data to be read out.

The data may be archived on the PC from firmware version 1.78

onwards.

The evaluation program can also generate data records that

can be read by MS EXCEL.

Note

If the note DEMO appears in the lower left-handcorner of the grid of the regular recorder display, the

recorder is operating in demo mode. In this operating

mode, the recorder only records the measured values

for a period of 4 - 6 hours. After this period, the older

values are replaced by the new ones.

dT = 14sdT = 1m

dT = 5mdT = 10m

1 division


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5 Commissioning


Monitoring is a complex device with many functions.

This variety of functions necessitates a comprehensive

operating manual.

It was considered whether it was better to fill the individual

screenshots with all the theoretical information, or whether it is

better to separate the two parts by summarising the

background information and guiding the reader through the

individual screens.

We finally decided to offer two separate parts with the

corresponding cross-references.

However, in order to make it as easy as possible to start the

parameterisation without constantly having to jump between

two sections, we have inserted a commissioning section which

enables a standard voltage regulation to be carried out step-by-step.

Thus we based the description on the most important functions

of voltage regulation.

A summary of the limit values with a short explanation and links

to the appropriate chapters can be found on Page 85

Whilst the parameterisation can be implemented using the

WinREG parameterisation program, this chapter only deals withparameterisation using the device keypad.

The parameters that are particularly important for voltage

regulation will be briefly mentioned in seven steps and the

parameterisation explained.

Further settings that are required in special cases can be found

in chapter 7.

After applying the operating voltage, the

REG-DA will indicate that it is in regulator mode.

Other modes, such as measurement transducer mode,

recorder mode, statistics mode and ParaGramer mode, can be

selected at any time.


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Therefore it is important to realise that all modes run parallel to

each other in the background. If one selects the recorder mode

(for example), the regulating tasks and all the other

parameterised task settings will also naturally be processed.

Press MENU and then use the keys

F2 ... F5 to select the desired mode.

The individual operating modes are briefly described below.

In total, six SETUPs are designed for the parameterisation.

You can scroll through the individual SETUPs in the following

manner:

Starting at the main menu (regulator, measurement transducer,

recorder, statistics or ParaGramer), press MENU to enterSETUP 1.

Repeatedly pressing the MENU key selects SETUP 2 to SETUP

6.

If you are already in one of the SETUPs, you can reach all the

other menus by pressing the and keys.

Caution!

Please observe the Warnings and Notes on Page 9without fail!


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5.1 Regulator mode

After the auxiliary voltage is applied, the Relay for Voltage

Control & Transformer Monitoring indicates that it is in regulator

mode.

The important parameters for assessing a regulation situation

are shown in this display mode.The tap-changer position and the present regulative deviation

are shown in addition to the actual voltage value. The present

regulative deviation is shown in quasi-analogue form.

If the pointer is at 0 the actual value is the same as the

setpoint value. If the regulative deviation is within the tolerance

range the pointer is transparent. If the regulative deviation is

outside the permissible regulative deviation the pointer changes

to black.

In this way one can judge the present condition of the controlled

system at a glance.

An alternative display with additional information the compactdisplay can be selected using the F1 key.

In addition to the actual value and the tap-changer position, the

setpoint value in V (kV) and % as well as the permissible

regulative deviation in % are shown in this display.

If you

A-eberle Relay Reg Da

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