01_10_2013_15_26_40MV Current Transformers.pdf

CURRENT TRANSFORMERSCURRENT TRANSFORMERS

6

General DefinitionsGeneral DefinitionsGeneral definitions have been given according to International Standarts IEC 6OO44General definitions have been given according to International Standarts IEC 6OO44.

Instrument TransformerInstrument TransformerA transformer intended to supply measuring instruments meters, protection relays and other similiar apparatus.A transformer intended to supply measuring instruments meters, protection relays and other similiar apparatus.

Applicable StandardsApplicable StandardsOur transformers comply with applicable national and international standards.Our transformers comply with applicable national and international standards.

Current TransformersCurrent TransformersAn instrument transformer in which the secondary current, in normal conditions of useAn instrument transformer in which the secondary current, in normal conditions of use, is substantially proportional to the primary is substantially proportional to the primarycurrent and differs in phase from it by angle which is approximately zero for an appropriate direction of the connections.current and differs in phase from it by angle which is approximately zero for an appropriate direction of the connections.It isolates the instrument and protection circuit from the primary side and protect the devices against overload according to the It isolates the instrument and protection circuit from the primary side and protect the devices against overload according to the overcurrent characteristics of the transformer. Current transformers can have several secondary windings with cores of identical ofovercurrent characteristics of the transformer. Current transformers can have several secondary windings with cores of identical ofdifferent characteristics completely isolated from each other.different characteristics completely isolated from each other.

Measuring Current TransformerMeasuring Current TransformerA current transformer intended to supply indicating instruments, integrating meters and similiar apparatus.A current transformer intended to supply indicating instruments, integrating meters and similiar apparatus.

Protective Current TransformerProtective Current TransformerA current transformer intended to supply protective relays.A current transformer intended to supply protective relays.

Primary WindingPrimary WindingThe winding through which flows the current to be transformed.The winding through which flows the current to be transformed.

Secondary WindingSecondary WindingThe winding, which supplies the current circuits of measuring instruments, meters, relays or similiar devices.The winding, which supplies the current circuits of measuring instruments, meters, relays or similiar devices.

Secondary CircuitSecondary CircuitThe external circuit supplied by the secondary winding of a transformer.The external circuit supplied by the secondary winding of a transformer.

Rated Primary CurrentRated Primary CurrentThe value of the primary current on which the performance of the transformer is based.The value of the primary current on which the performance of the transformer is based.

Rated Secondary CurrentRated Secondary CurrentThe value of the secondary current on which the performance of the transformer is based.The value of the secondary current on which the performance of the transformer is based.

Rated Transformation RatioRated Transformation RatioThe ratio of rated primary current to the rated secondary current (I1NThe ratio of rated primary current to the rated secondary current (I1N/ I2N-i.e. 1OOI2N-i.e. 1OO/5A)5A)

Current Error (Ratio Error)Current Error (Ratio Error)The error which a transformer introduces into the measurement of a current and which arises from the fact that the actualThe error which a transformer introduces into the measurement of a current and which arises from the fact that the actualtransformation ratio is not equal to the rated transformation ratio.transformation ratio is not equal to the rated transformation ratio.The current error expressed in per cent is given by formula:The current error expressed in per cent is given by formula:Current Error Current Error % (Kn Is - Ip) (Kn Is - Ip)

WhereWhereKn is the rated transformation ratio;Kn is the rated transformation ratio;Ip is the actual primary currentIp is the actual primary currentIs is the actual secondary current when Ip is flowing under the conditions of measurements. Is is the actual secondary current when Ip is flowing under the conditions of measurements.

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Accuracy ClassAccuracy ClassA designation assigned to a current transformer errors of which remain within specified limits under prescribed conditions of use.A designation assigned to a current transformer errors of which remain within specified limits under prescribed conditions of use.

BurdenBurdenThe impedance of the secondary circuit in ohms and power-factor. The burden is usually expressed as the apparent power in The impedance of the secondary circuit in ohms and power-factor. The burden is usually expressed as the apparent power in voltamperes absorbed at a specified power-factor and at the rated secondary current.voltamperes absorbed at a specified power-factor and at the rated secondary current.

Rated BurdenRated BurdenThe value of the burden on which the accuracy requirements are based on.The value of the burden on which the accuracy requirements are based on.

Rated OutputRated OutputThe value of the apparent power (in voltamperes at a specified power-factor) which the transformer is intended to supply to theThe value of the apparent power (in voltamperes at a specified power-factor) which the transformer is intended to supply to thesecondary circuit at the rated secondary current and with rated burden connected to it.secondary circuit at the rated secondary current and with rated burden connected to it.

Rated Insulation LevelRated Insulation LevelThe combination of voltage values which characterizes the insulation of a transformer with regard to its capability to whitstandThe combination of voltage values which characterizes the insulation of a transformer with regard to its capability to whitstanddielectric stresses.dielectric stresses.

Rated FrequencyRated FrequencyThis is the frequency for which the transformer is designed and given in Hz on the rating plate.This is the frequency for which the transformer is designed and given in Hz on the rating plate.

Rated Short-Time Thermal Current (Ith)Rated Short-Time Thermal Current (Ith)The r.m.s. value of the primary current which a transformer will withstand for one second without suffering harmful effectsThe r.m.s. value of the primary current which a transformer will withstand for one second without suffering harmful effectsthe secondary winding being short-circuited.the secondary winding being short-circuited.

Rated Dynamic Current (ldyn)Rated Dynamic Current (ldyn)The peak value of the primary current which a transformer will withstand without being damaged electrically or mechanicallyThe peak value of the primary current which a transformer will withstand without being damaged electrically or mechanicallyby the resulting electromagnetic forces the secondary winding being short-circuited.by the resulting electromagnetic forces the secondary winding being short-circuited.

Rated Continuous Thermal CurrentRated Continuous Thermal CurrentThe value of the current which can be permitted to flow continuously in the primary winding the secondary winding being The value of the current which can be permitted to flow continuously in the primary winding the secondary winding being connected to the rated burden without temperature rise exceeding the values specified.connected to the rated burden without temperature rise exceeding the values specified.

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8

CONNECTION DIAGRAMSCONNECTION DIAGRAMS

Single Ratio Current TransformersSingle Ratio Current Transformers

S1 S2S2 1S11S1 1S2 2S1 2S22S2 3S1

Multi CoresMulti Cores3S23S2

P1 P1 P2P2P2P2

Single CoreSingle Core

Reconnection of Current TransformerReconnection of Current TransformerIn case of changeable ratios, it is possible to design the transformer with primary reconnection or secondary tapping;In case of changeable ratios, it is possible to design the transformer with primary reconnection or secondary tapping;

Primary ReconnectionPrimary ReconnectionChangeover will be done at the primary Changeover will be done at the primary side by using joint bars.side by using joint bars.Can be used only for primary currents up to 2 x 6OOACan be used only for primary currents up to 2 x 6OOA

Secondary TappingSecondary TappingChangeover will be done at the secondary side. Changeover will be done at the secondary side.

S1 S2

P1 C1 C2 P2

C1 -C2 short circuited: low rated currentC1 -C2 short circuited: low rated currentP1 - C1 and P2 - C2 short circuited: high rated currentP1 - C1 and P2 - C2 short circuited: high rated current

S1 -S2 low rated currentS1 -S2 low rated currentS1 - S3 high rated currentS1 - S3 high rated current

P1P1

S1 S2 S3

P2P2

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Safety Operation Conditions for Current TransformersSafety Operation Conditions for Current Transformers

9

- The secondary circuit of a current transformer must not be operated with an open - circuit.- The secondary circuit of a current transformer must not be operated with an open - circuit.- The secondary winding of a current transformer which will not be used must- The secondary winding of a current transformer which will not be used must be short - circuited and earthed as seen in Diagram-2 be short - circuited and earthed as seen in Diagram-2

- When the secondary terminals are connected to the measuring or protection devices - When the secondary terminals are connected to the measuring or protection devices one of the terminals should be earthed for safety as seen in Diagram-1.one of the terminals should be earthed for safety as seen in Diagram-1.

- For the transformer with reconnectable and - or tapped secondaries - For the transformer with reconnectable and - or tapped secondaries unused terminals must be left open as seen in Diagram-3.unused terminals must be left open as seen in Diagram-3.

- The current transformers which have capacitive divider tap (Ck) must be connected to the indicator if the tap will- The current transformers which have capacitive divider tap (Ck) must be connected to the indicator if the tap willnot be used then it must be earthed.not be used then it must be earthed.

S1 S2S2

P1P1 P2

A

Diagram-1Diagram-1

S1 S2S2

P1P1 P2

Diagram-2Diagram-2

S1 S2S3 openS3 open

P1P1 P2

A

Diagram-3Diagram-3

M.V. CURRENT TRANSFORMERS CONNECTION CLEARENCESM.V. CURRENT TRANSFORMERS CONNECTION CLEARENCES

a b

Insulation LevelInsulation Level

12kV

24kV24kV

36kV

a minimuma minimum

1OOmm

19Omm19Omm

3O5mm3O5mm

b minimumb minimum

11Omm

21Omm21Omm

325mm


10

Technical DataTechnical Data

- Up to 3 cores- Up to 3 cores*- On request with capacitive layer.- On request with capacitive layer.- On request with barrier.- On request with barrier.

INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=3,6kV .. . . . . . . . . . . . . 12kV BLOCK TYPES)(Um=3,6kV .. . . . . . . . . . . . . 12kV BLOCK TYPES)

TYPESTYPES ATB 1O-B ATB 1O-B ATB 1O-B2ATB 1O-B2 ATB 1O-B3ATB 1O-B3 ATB 1O-2ATB 1O-2

Operating voltage, Um (kV)Operating voltage, Um (kV)

Rated power-frequency withstand voltage (1 minute) (kV)Rated power-frequency withstand voltage (1 minute) (kV)

Rated frequency (Hz)Rated frequency (Hz)

Primary rated current (A)Primary rated current (A)

Primary reconnection (A)Primary reconnection (A)

Secondary rated current (A)Secondary rated current (A)

Metering classesMetering classes

Protection classesProtection classes

Rated short-time thermal current (lth) (1s) (kA)Rated short-time thermal current (lth) (1s) (kA)

Rated dynamic current (ldyn) (kA)Rated dynamic current (ldyn) (kA)

Short-time load (mechanical) (N)Short-time load (mechanical) (N)

Insulation classInsulation class

Ambient temperature (C)Ambient temperature (C)

Altitude (m)Altitude (m)

StandardStandard

Weight (approx.) (kg)Weight (approx.) (kg)

3,6 7,2 123,6 7,2 12

1O 2O 281O 2O 28

4O 6O 754O 6O 75

5O-6O5O-6O

5 - 25OO5 - 25OO

2 x 5 - 2 x 6OO2 x 5 - 2 x 6OO

1-51-5

O,2 - O,2S - O,5 - O,5S - 1 - 3 - 5 Acc. to IEC 6OO44-1O,2 - O,2S - O,5 - O,5S - 1 - 3 - 5 Acc. to IEC 6OO44-1

5P- 1OP; CI:PX Acc. to IEC 6OO44-15P- 1OP; CI:PX Acc. to IEC 6OO44-1

max. 1OOO x Inmax. 1OOO x In

2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O**

1OOO1OOO

According to the customer requirementsAccording to the customer requirements

2O - 252O - 25 28 - 3328 - 33 33 - 3633 - 36 36

(On request 3OOOA 1.Oxln (On request 3OOOA 1.Oxln / Cont. & Cont. &Insulation class B )Insulation class B )

On request operating voltage of 17,5 kV is available.On request operating voltage of 17,5 kV is available.* For more cores please contact with ESITAS for feasibility. For more cores please contact with ESITAS for feasibility.

** It can be produced according to customer's specified ambient temperature.Please contact with ESiTAS for feasibility. It can be produced according to customer's specified ambient temperature.Please contact with ESiTAS for feasibility.

1111

- All dimensions are in mm.All dimensions are in mm.- Tolerances are according to DIN 7168-g when not specified.Tolerances are according to DIN 7168-g when not specified.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.

INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGINDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWING(Um=3,6kV .. . . . . . . . . . . . . 12kV BLOCK TYPES)(Um=3,6kV .. . . . . . . . . . . . . 12kV BLOCK TYPES)

TIGHTENING TORQUE (Nm)TIGHTENING TORQUE (Nm)

M5 (Secondary Terminal)M5 (Secondary Terminal)

M8 (Ground Terminal)M8 (Ground Terminal)

M12 (Primary Terminal)M12 (Primary Terminal)

min.

2.5

max.

3.5

15 2O

6O 7O

TYPES

ATB 1O-B

ATB 1O-B2

ATB 1O-B3

ATB 1O-2

A B C D E F G H

355 155 22O 148 29O 125 27O

395 195 22O 148 33O 125 31O

2O

2O

455 255 22O 148 39O 125 37O 2O

355 155 22O 175 29O 15O 27O 2O

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- Up to 3 cores- Up to 3 cores*- On request with capacitive layer.- On request with capacitive layer.- On request with barrier.- On request with barrier.

INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=3,6kV .. . . . . 12kV, 17,5 . . . . . . 24kV NEW BLOCK TYPES)(Um=3,6kV .. . . . . 12kV, 17,5 . . . . . . 24kV NEW BLOCK TYPES)

* For more cores please contact with ESITAS for feasibility. For more cores please contact with ESITAS for feasibility.** On request ATB 1O-BS operating voltage of 17,5kV is available. On request ATB 1O-BS operating voltage of 17,5kV is available.

*** It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility.It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility.

TYPESTYPES ATB 1O-BSATB 1O-BS ATB 2O-BSATB 2O-BS














Altitude (m)

Standard


3,6 7,2 123,6 7,2 12

1O 2O 281O 2O 28

4O 6O 754O 6O 75

17,5 2417,5 24

38 5O38 5O

95 12595 125

5O-6O5O-6O

5 - 25OO5 - 25OO

2 x 5 - 2 x 6OO2 x 5 - 2 x 6OO

1-5




2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O******

1OOO1OOO


2O - 252O - 25 3O3O


**

1313


INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGINDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWING(Um=3,6kV .. . . . . 12kV, 17,5 . . . . . . 24kV NEW BLOCK TYPES)(Um=3,6kV .. . . . . 12kV, 17,5 . . . . . . 24kV NEW BLOCK TYPES)

TYPES

ATB 1O-BS

ATB 2O-BS

A B C D E F G H I J

355 155 22O 148 299 135 -

355 155 28O 178 3OO 135 34O

125

15O

27O

28O

2O

2O





min.

2.5

max.

3.5

15 2O

6O 7O

8Omm will be8Omm will be7Omm at7Omm atATB1O-BSATB1O-BS

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TYPESTYPES ATB 1O-1OATB 1O-1O ATB 1O-15ATB 1O-15










Rated dynamic current (ldyn) Rated dynamic current (ldyn) (kA)(kA)




Altitude (m)

Standard


3,63,6 7,27,2 12

1O 2O 28

4O 6O 7575

5O-6O5O-6O

5-up to 125O5-up to 125O

2x5- 2x6OO2x5- 2x6OO

1-51-5



(max. 2OO x In)(max. 2OO x In)****

2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O******

1OOO


12 17

On request operating voltage of 17,5 kV is available.On request operating voltage of 17,5 kV is available.* For more cores please contact with ESITAS for feasibility.For more cores please contact with ESITAS for feasibility.

** May vary according to requested primary current and core values. May vary according to requested primary current and core values.*** It can be produced according to customer's specified ambient temperature. Please contact with ESiTAS for feasibility. It can be produced according to customer's specified ambient temperature. Please contact with ESiTAS for feasibility.

Technical Data

Types: ATB 1O-1OTypes: ATB 1O-1OATB 1O-15ATB 1O-15

- ATB 1O-1O up to 1 core- ATB 1O-1O up to 1 core*- ATB 1O-15 up to 2 cores.- ATB 1O-15 up to 2 cores.*- On request with capacitive layer.- On request with capacitive layer.- On request with barrier.- On request with barrier.

INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=3,6kV .. . . . . . . . . . . . . 12kV NARROW BLOCK TYPES)(Um=3,6kV .. . . . . . . . . . . . . 12kV NARROW BLOCK TYPES)

1515

INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGS TECHNICAL DRAWING(Um=3,6kV .. . . . . . . . . . . . . 12kV NARROW BLOCK TYPES)(Um=3,6kV .. . . . . . . . . . . . . 12kV NARROW BLOCK TYPES)

TYPES

ATB 1O-1OATB 1O-1O

ATB 1O-15ATB 1O-15

A B C D E F G

33O 155 22O 148 125 27O 2O

33O 155 22O 148 125 27O 2O





min.

2.5

max.

3.5

15 2O

6O 7O


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INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=17,5kV .. . . . . . . . . . . . . 24kV BLOCK TYPES)(Um=17,5kV .. . . . . . . . . . . . . 24kV BLOCK TYPES)

- Up to 3 cores.- Up to 3 cores.*- On request with capacitive layer.- On request with capacitive layer.- On request with barrier.- On request with barrier.

* For more cores please contact with ESITAS for feasibility. For more cores please contact with ESITAS for feasibility.** It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility. It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility.

TYPESTYPES















Standard


17.5 2417.5 24

38 5O38 5O

95 12595 125

5O-6O5O-6O

5 - 25OO5 - 25OO

2 x 5 - 2 x 6OO2 x 5 - 2 x 6OO

1-5




2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O**

1OOO1OOO


3O3O 42 44 44 55 7O

ATB 2O-BATB 2O-B ATB 2O-B2ATB 2O-B2 ATB 2O-B4ATB 2O-B4 ATB 2O-3ATB 2O-3 ATB 2O-3BATB 2O-3B ATB 2O-3KATB 2O-3K


INDOOR SUPPORT TYPE CAST RESIN INSULATED INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=17,5kV .. . . . . . . . . . . . . 24kV BLOCK TYPES)(Um=17,5kV .. . . . . . . . . . . . . 24kV BLOCK TYPES)

17


455 197 28O 218 39O 195 19O 375 22

TYPES

ATB 2O-B

ATB 2O-B2

ATB 2O-B4

ATB 2O-3

ATB 2O-3BATB 2O-3B

ATB 2O-3KATB 2O-3K

A B C D E F G H I

355 155 28O 178 29O 145 15O 28O 2O

355 155 28O 2O5 29O 145 18O 28O 17

355 155 28O 218 29O 145 19O 28O 17

455 197 28O 178 39O 195 15O 375 22

455 197 28O 2O5 39O 195 18O 375 22





min.

2.5

max.

3.5

15 2O

6O 7O

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Technical Data

Types: ATB 2O-3ATypes: ATB 2O-3A ATB 2O-3B ATB 2O-3B

INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=17,5kV .. . . . . . . . . . . . . 24kV NEW BLOCK TYPES)(Um=17,5kV .. . . . . . . . . . . . . 24kV NEW BLOCK TYPES)



TYPESTYPES















StandardStandard


17.5 2417.5 24

38 5O38 5O

95 12595 125

5O-6O5O-6O

5 - 25OO5 - 25OO

2 x 5 - 2 x 6OO2 x 5 - 2 x 6OO

1-51-5




2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O**

1OOO1OOO


44 44 5555

ATB 2O-3BATB 2O-3B ATB 2O-3A ATB 2O-3A


INDOOR SUPPORT TYPE CAST RESIN INSULATED INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=17,5kV .. . . . . . . . . . . . . 24kV NEW BLOCK TYPES)(Um=17,5kV .. . . . . . . . . . . . . 24kV NEW BLOCK TYPES)

19


TYPESTYPES

ATB 2O-3AATB 2O-3A

ATB 2O-3BATB 2O-3B

A B C D E F G H

455 28O 178 39O 14O 15O 375

455 28O 2O5 39O 14O 18O 375 2O

2O





min.

2.5

max.

3.5

15 2O

6O 7O

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Technical Data

Types: ATB 2O-1OTypes: ATB 2O-1O ATB 2O-15

INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=17,5kV .. . . . . . . . . . . . . 24kV NARROW BLOCK TYPES)(Um=17,5kV .. . . . . . . . . . . . . 24kV NARROW BLOCK TYPES)

- ATB 2O-1O up to 1 core- ATB 2O-1O up to 1 core*- ATB 2O-15 up to 2 cores.- ATB 2O-15 up to 2 cores.*- On request with capacitive layer.- On request with capacitive layer.- On request with barrier.- On request with barrier.

TYPESTYPES















StandardStandard


17.5 2417.5 24

38 5O38 5O

95 12595 125

5O-6O5O-6O

5 up to 125O5 up to 125O

2 x 5 - 2 x 6OO2 x 5 - 2 x 6OO

1-51-5



(max. 3OO x In)(max. 3OO x In)****

2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O******

1OOO1OOO


22 22 3O

ATB 2O-15ATB 2O-15 ATB 2O-1O ATB 2O-1O

* For more cores please contact with ESITAS for feasibility. For more cores please contact with ESITAS for feasibility.** May vary according to requested primary current and core values. May vary according to requested primary current and core values.

*** It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility. It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility.

INDOOR SUPPORT TYPE CAST RESIN INSULATED INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=17,5kV .. . . . . . . . . . . . . 24kV NARROW BLOCK TYPES)(Um=17,5kV .. . . . . . . . . . . . . 24kV NARROW BLOCK TYPES)

21


TYPES

ATB 2O-1O

ATB 2O-15

A B C D E F G

335 155 28O 178 15O 28O 2O

335 155 28O 178 15O 28O 2O





min.

2.5

max.

3.5

15 2O

6O 7O

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INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=36kV BLOCK TYPES)(Um=36kV BLOCK TYPES)



TYPESTYPES














Altitude (m)

Standard


36

7O

17O17O

5O-6O

5 - 25OO5 - 25OO

2 x 5 - 2 x 6OO2 x 5 - 2 x 6OO

1-5




2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O**

1OOO


ATB 3O-SATB 3O-S ATB 3O-S1ATB 3O-S1 ATB 3O-1ATB 3O-1 ATB 3O-2ATB 3O-2 ATB 3O-3ATB 3O-3


35 3737 4O 46 51

INDOOR SUPPORT TYPE CAST RESIN INSULATED INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=36kV BLOCK TYPES)(Um=36kV BLOCK TYPES)

23

- All dimensions are in mm. All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified.Tolerances are according to DIN 7168-g when not specified.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.





min.

2.5

max.

3.5

15 2O

6O 7O

TYPES

ATB 3O-S

ATB 3O-S1

ATB 3O-1

A B C D E F G H I J

385 17O 36O 255 25O 125 21O 225

385 17O 36O 255 27O 135 22O 225

385 17O 36O 255 27O 135 22O 225

3OO

3OO

3OO

2O

2O

2O

ATB 3O-2 385 17O 36O 255 31O 155 24O 225 3OO 2O

ATB 3O-3 455 21O 36O 255 389 195 249 225 375 2O

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Technical Data

INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=36kV NARROW BLOCK TYPES)(Um=36kV NARROW BLOCK TYPES)

- ATB 3O-4- ATB 3O-4, 3O-5 3O-5, 3O-1O up to 1 core. 3O-1O up to 1 core.*- ATB 3O-15 up to 2 cores.- ATB 3O-15 up to 2 cores.**- On request with capacitive layer.- On request with capacitive layer.- ATB 3O-1O & ATB 3O-15 with barrier on request.- ATB 3O-1O & ATB 3O-15 with barrier on request.

* For more cores please contact with ESITAS for feasibility. For more cores please contact with ESITAS for feasibility.** May vary according to requested primary current and core values. May vary according to requested primary current and core values.

*** It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility. It can be produced according to customer's specified ambient temperature.Please contact with ESITAS for feasibility.

5 - up to 6OO5 - up to 6OO

2x5 - 2x3OO2x5 - 2x3OO

5 - up to 125O5 - up to 125O

2x5 - 2x6OO2x5 - 2x6OO

TYPESTYPES










3636

7O7O

17O

5O-6O5O-6O

1-51-5





Insulation class


Altitude (m)

StandardStandard


2,5 x lth2,5 x lth

5OOO5OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O******

1OOO


2O 2222 2525 3535

ATB 3O-4ATB 3O-4 ATB 3O-5 ATB 3O-1OATB 3O-1O ATB 3O-15ATB 3O-15

max. 3OOxInmax. 3OOxIn**(for 1 (for 1

measurement measurement core)core)





max. 3OOxInmax. 3OOxIn**(for 2 cores)(for 2 cores)

INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGINDOOR SUPPORT TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWING(Um=36kV NARROW BLOCK TYPES)(Um=36kV NARROW BLOCK TYPES)

25

- All dimensions are in mm.All dimensions are in mm.- Tolerances are according to DIN 7168-g when not specified.Tolerances are according to DIN 7168-g when not specified.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.




M 12 (Primary Terminal)M 12 (Primary Terminal)

min.

2.5

max.

3.5

15 2O

6O 7O

TYPES

ATB 3O-4

ATB 3O-5

ATB 3O-1O

ATB 3O-15

A B C D E F G H I J

385 17O 36O 255 2OO 1OO 18O 225

385 17O 36O 255 25O 125 21O 225

385 17O 36O 255 25O 125 21O 225

385 17O 36O 255 25O 125 21O 225

3OO

3OO

3OO

3OO

2O

2O

2O

2O

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26

Technical Data

Types: ATU 24

INDOOR SUPPORT TYPE CAST RESIN INSULATED NARROW TYPE CURRENT TRANSFORMERSINDOOR SUPPORT TYPE CAST RESIN INSULATED NARROW TYPE CURRENT TRANSFORMERS(Um=7,2kV .. . . . . . . . . 24kV BLOCK TYPES)(Um=7,2kV .. . . . . . . . . 24kV BLOCK TYPES)

- Up to 2 cores.- Up to 2 cores.

* May vary according to requested primary current and core values. May vary according to requested primary current and core values.** It can be produced according to customers specified ambient temperature. Please contact with ESITAS for feasibility. It can be produced according to customers specified ambient temperature. Please contact with ESITAS for feasibility.











StandardStandard


1-51-5


5P- 1OP Acc. to IEC 6OO44-15P- 1OP Acc. to IEC 6OO44-1

1OO x In1OO x In*

2,5 x lth2,5 x lth

5OOO

E

-25.. . . . . . . . . . .+4O-25.. . . . . . . . . . .+4O****

1OOO1OOO


24

TYPESTYPES





7,2 12 17,5 247,2 12 17,5 24

2O 28 38 5O2O 28 38 5O

6O 75 95 1256O 75 95 125

5O-6O5O-6O

1O - up to 8OO1O - up to 8OO

2x1O - 2x4OO2x1O - 2x4OO

ATU 24 ATU 24

INDOOR SUPPORT TYPE CAST RESIN INSULATED NARROW TYPE C.T.SINDOOR SUPPORT TYPE CAST RESIN INSULATED NARROW TYPE C.T.STECHNICAL DRAWINGTECHNICAL DRAWING

(Um=7,2kV .. . . . . . . . . 24kV BLOCK TYPES)(Um=7,2kV .. . . . . . . . . 24kV BLOCK TYPES)

27


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28

Technical Data

Types: ES24 C3-B

INDOOR SUPPORT TYPE CAST RESIN INSULATED SPECIAL TYPEINDOOR SUPPORT TYPE CAST RESIN INSULATED SPECIAL TYPECURRENT TRANSFORMERSCURRENT TRANSFORMERS

(Um=7,2kV .. . . . . . . . . 24kV BLOCK TYPES)

- Up to 2 cores.- Up to 2 cores.

* May vary according to requested primary current and core values. May vary according to requested primary current and core values.** It can be produced according to customers specified ambient temperature. Please contact with ESITAS for feasibility. It can be produced according to customers specified ambient temperature. Please contact with ESITAS for feasibility.









Ambient temperature Ambient temperature (C)(C)


StandardStandard


1-5


5P-1OP-PX Acc. to IEC 6OO44-15P-1OP-PX Acc. to IEC 6OO44-1

Up to 6OkAUp to 6OkA*

2,5 x lth2,5 x lth

5OOO5OOO

E

-25.. . . . . . . . . . .+4O-25.. . . . . . . . . . .+4O**

1OOO1OOO


2525

TYPESTYPES





7,2 12 17,5 247,2 12 17,5 24

2O 28 38 5O2O 28 38 5O

6O 75 95 1256O 75 95 125

5O-6O5O-6O

1O - up to 8OO1O - up to 8OO

2x1O - 2x4OO2x1O - 2x4OO

ES24 C3-B ES24 C3-B

PES)

INDOOR SUPPORT TYPE CAST RESIN INSULATED SPECIAL TYPE C.T.SINDOOR SUPPORT TYPE CAST RESIN INSULATED SPECIAL TYPE C.T.STECHNICAL DRAWINGTECHNICAL DRAWING

(Um=7,2kV .. . . . . . . . . 24kV BLOCK TYPES)(Um=7,2kV .. . . . . . . . . 24kV BLOCK TYPES)

29


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30

Technical Data

INDOOR POST BUSBAR TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR POST BUSBAR TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=3,6kV .. . . . . . . . . . . . . . . . . . .24kV)(Um=3,6kV .. . . . . . . . . . . . . . . . . . .24kV)

- Up to 2 cores.- Up to 2 cores.*











StandardStandard


1-51-5



max. 1OOmax. 1OO

Practically UnlimitedPractically Unlimited

3OOO3OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O**

1OOO1OOO


19 34

TYPESTYPES





3,6 7,2 123,6 7,2 12

1O 2O 281O 2O 28

4O 6O 754O 6O 75

17,5 2417,5 24

38 5O38 5O

95 12595 125

5O-6O5O-6O

8OO-3OOO8OO-3OOO 8OO-4OOO8OO-4OOO

ATD 1O ATD 1O ATD 2O ATD 2O

INDOOR INDOOR POST BUSBARPOST BUSBAR TYPE CAST RESIN INSULATED TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=3,6kV .. . . . . . . . . . . . .24kV)(Um=3,6kV .. . . . . . . . . . . . .24kV)

31

- All dimensions are in mm. All dimensions are in mm. - Tolerance is DIN 7168-g .Tolerance is DIN 7168-g .- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.



min.

2.5

max.

3.5

TYPES

ATD 1O

ATD 2O

A B C D E F G H I

28O 1O2 342 214 215 235 158 155

28O 1O2 427 26O 26O 295 158 155

23

23

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32


INDOOR POST BUSBAR TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSINDOOR POST BUSBAR TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=3,6kV.. . . . . . . . . . .24kV)(Um=3,6kV.. . . . . . . . . . .24kV)











Altitude (m)

StandardStandard


1-51-5



max. 1OOmax. 1OO

Practically UnlimitedPractically Unlimited

3OOO3OOO

E

-25 .. . . . . . . . . . +4O-25 .. . . . . . . . . . +4O**

1OOO


35 4O4O 3838

TYPESTYPES





3,6 7,2 12 17,53,6 7,2 12 17,5

1O 2O 28 381O 2O 28 38

4O 6O 75 954O 6O 75 95

17,5 2417,5 24

38 5O38 5O

95 12595 125

5O-6O5O-6O

8OO-4OOO8OO-4OOO

ATN 17 ATN 17 ATN 24 ATN 24ESO 17CESO 17C

3333

- All dimensions are in mm.All dimensions are in mm.- Tolerance is DIN 7168-g.Tolerance is DIN 7168-g.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.

M5 (Secondary Terminal)M5 (Secondary Terminal) 2,5 3,5

TIGHTENING TORQUE (Nm)TIGHTENING TORQUE (Nm) min. max.

INDOOR POST BUSBAR TYPE CAST RESIN INSULATED INDOOR POST BUSBAR TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=3,6kV.. . . . . . . . . . .24kV)(Um=3,6kV.. . . . . . . . . . .24kV)

ATN 17 (width 15Omm )ATN 17 (width 15Omm ) ATN 17 ATN 17 (width 28Omm )(width 28Omm )

ATN 24ATN 24 ESO 17CESO 17C

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34

Technical Data

OUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSOUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=3,6kV .. . . . . . . . . . . . . . . . . . .24kV)(Um=3,6kV .. . . . . . . . . . . . . . . . . . .24kV)

- ATH 2O up to 1 core.- ATH 2O up to 1 core.*- ATH 21 up to 2 cores.- ATH 21 up to 2 cores.*- ATH 22 up to 3 cores.- ATH 22 up to 3 cores.*

* For more cores please contact with ESITAS for feasibility. For more cores please contact with ESITAS for feasibility.








Insulation class

Min. creepage distance (mm)Min. creepage distance (mm)

Altitude (m)

Standard


1-51-5




2,5 x lth2,5 x lth

24OO24OO

E

56O56O 825 77O77O



24 35 7878

TYPES





3,6 7,2 123,6 7,2 12

1O 2O 281O 2O 28

4O 6O 754O 6O 75

17,5 2417,5 24

38 5O38 5O

95 12595 125

5O-6O5O-6O

5-125O5-125O 5-25OO

2x5 - 2x4OO2x5 - 2x4OO 2x5 - 2x6OO2x5 - 2x6OO

ATH 2O ATH 2O ATH 21 ATH 22 ATH 22

For the connectionFor the connectionof aluminium conductorsof aluminium conductors

steel reinforcedsteel reinforced

OUTDOOR DRY TYPE CAST RESIN INSULATED OUTDOOR DRY TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=3,6kV .. . . . . . . . . . . . . . . . . . .24kV)(Um=3,6kV .. . . . . . . . . . . . . . . . . . .24kV)

35- All dimensions are in mm.All dimensions are in mm.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.

TYPES

ATH 2O

A B C D E F G H

245 1O5 max.35Omax.37O

max.38O

max. 225max. 34O

max. 415

22O 178 175 2O

ATH 21 35O 165 3OO 27O 2OO 65

ATH 22 4OO 195 37O 34O 25O 7O

M6 (Secondary Terminal)M6 (Secondary Terminal) 3 5

M12 (Primary & Ground Terminal)M12 (Primary & Ground Terminal) 6O 7O


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36

Technical Data

Types: ATH 3O ATH 32

OUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERSOUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS(Um=36kV)(Um=36kV)

- ATH 3O up to 2 cores.- ATH 3O up to 2 cores.*- ATH 32 up to 3 cores.- ATH 32 up to 3 cores.*












StandardStandard


1-51-5




2,5 x lth2,5 x lth

25OO25OO

E

114O114O



4747 85

TYPESTYPES





36

7O7O

17O17O

5O-6O5O-6O

5-25OO5-25OO

2x5 - 2x6OO2x5 - 2x6OO

ATH 3O ATH 3O ATH 32 ATH 32



OUTDOOR DRY TYPE CAST RESIN INSULATED OUTDOOR DRY TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=36kV)(Um=36kV)

37- All dimensions are in mm.All dimensions are in mm.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.

TYPES

ATH 3O

A B C D E F G H

35O 165 max.465max.477

max. 34Omax. 4O3

3OO 27O 2OO 65

ATH 32 39O 19O 35O 32O 25O 65




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38

Technical Data

Types: ATH 3O-NTypes: ATH 3O-N ATH 32-N


- ATH 3O-N up to 2 cores.- ATH 3O-N up to 2 cores.*- ATH 32-N up to 3 cores.- ATH 32-N up to 3 cores.*












StandardStandard


1-51-5




2,5 x lth2,5 x lth

25OO25OO

E

114O114O



4747 8585

TYPESTYPES





36

7O

17O17O

5O-6O5O-6O

5-25OO5-25OO

2x5 - 2x6OO2x5 - 2x6OO

ATH 3O-N ATH 3O-N ATH 32-N ATH 32-N



OUTDOOR DRY TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGOUTDOOR DRY TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWING(Um=36kV)(Um=36kV)

39- All dimensions are in mm.All dimensions are in mm.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.

TYPES

ATH 3O-N

A B C D E F G H

35O 165 max.465max.474

max. 34Omax. 4OO

3OO 27O 2OO 65

ATH 32-N 39O 173 35O 32O 25O 65


M12 (Primary M12 (Primary TerminalTerminal) 6O 7O


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40

Technical Data

Types: ATH 52














Standard


1-51-5




2,5 x lth2,5 x lth

25OO

E

16OO16OO



14O14O

TYPESTYPES





5252

95

25O25O

5O-6O5O-6O

5-25OO5-25OO

2x5 - 2x6OO2x5 - 2x6OO

ATH 52 ATH 52



OUTDOOR DRY TYPE CAST RESIN INSULATED OUTDOOR DRY TYPE CAST RESIN INSULATED C.T.S TECHNICAL DRAWINGC.T.S TECHNICAL DRAWING(Um=52kV )(Um=52kV )

41- All dimensions are in mm.All dimensions are in mm.- Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information.- Customer designed products are also available.Customer designed products are also available.




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lq

01_10_2013_15_26_40MV Current Transformers.pdf

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