cte6RTV

2.1 Technical Data

2.1.1 Power Supply Voltage ............................................................................................. 2.1-2 2.1.2 Power Supply Burden .............................................................................................. 2.1-2 2.1.3 Current Analogy Inputs ............................................................................................ 2.1-2 2.1.4 Voltage Analogy Inputs ............................................................................................ 2.1-2 2.1.5 Frequency ................................................................................................................ 2.1-2 2.1.6 Measurement Accuracy ........................................................................................... 2.1-3 2.1.7 Repeatability ............................................................................................................ 2.1-4 2.1.8 Digital Inputs ............................................................................................................ 2.1-4 2.1.9 Operation Outputs (Raise/Lower Tap) and Auxiliary Outputs ................................. 2.1-4 2.1.10 Transducer Inputs .................................................................................................... 2.1-5 2.1.11 Communications Link............................................................................................... 2.1-5

Chapter 2. Technical Specifications and Physical Description

2.1-2

BRTV1110D

RTV: Transformer Voltage Regulator ZIV GRID AUTOMATION, S. L. Zamudio, 2011

2.1.1 Power Supply Voltage RTV IEDs have two types of auxiliary power supplies. Depending on the model, their values are selectable: 24 Vdc (+20% / -15%) 48 - 250 Vac/Vdc (20%) Note: In case of power supply failure, a maximum interruption of 100 ms is allowed for 110 Vdc input.

2.1.2 Power Supply Burden Quiescent 7 W Maximum

2.1 Technical Data

2.1-3

BRTV1110D RTV: Transformer Voltage Regulator ZIV GRID AUTOMATION, S. L. Zamudio, 2011

2.1.6 Measurement Accuracy

Measured currents 0.1% or 2 mA (the greater) Phases for In = 1A and 5A Measured voltages 0.1% or 50 mV (the greater) Phase-Ground, Phase-Phase Active and reactive powers (In = 5A and I phases>1A) Angles 0 or 90 or 180 0.33% W/Var Angles 45 or 135 1.6% W/Var Angles 75 / 115 5% W / 0.65% Var Angles 0.5 Power factor 0.013 Frequency 0.005 Hz Note: Signal processing Sampling function adjustment of analogy input signals is made by means of zero pass count of one of the measured signals, and works detecting the change in said signal period. The value of the calculated frequency is used to modify the sampling frequency used by the metering device attaining a constant sampling frequency of 32 samples per cycle. The frequency value is saved for later use in Protection and Control tasks. Zero crossing is detected by the voltage channel VPH. When VA phase voltage falls below 2 volts is not possible to measure frequency. In case of loosing phase voltage the sampling frequency to consider will be the nominal frequency of the system. When Protection and Control tasks are readjusted in accordance with the sampling function, phasor real and imaginary components of analogy signals are calculated by means of the Fourier transform. Fourier components are calculated by means of said Discrete Fourier Transform (DFT) using 32 sample/cycle. Using DFT this way the magnitude and phase angle of the fundamental component at power system frequency of every analogy input signal is obtained. The rest of measurements and calculations of Protection functions is obtained based on the fundamental components calculated by the Fourier method. DFT gives a precise measurement of the fundamental frequency component and it is an efficient filter for harmonics and noise. Harmonics are not completely damped for frequencies other than the nominal frequency. This is not a problem for small deviations of 1Hz but, in order that a greater deviation from the working frequency can be allowed, the above-mentioned automatic adjustment of the sampling frequency is included. On lack of an adequate signal for sampling frequency adjustment, said frequency is adjusted to the corresponding nominal frequency (50/60Hz). Angles reference for all the measurements displayed on the device corresponds to the voltage channel VPH.


2.1-4

BRTV1110D


2.1.7 Repeatability

Operating time 2 % or 25 ms (the greater)

2.1.8 Digital Inputs Configurable inputs with polarity: Rated Voltage Maximum Voltage Burden V on V off 24 Vdc 48 Vdc 50 mW 12 Vdc 9 Vdc 48 Vdc 90 Vdc 500 mW 30 Vdc 25 Vdc 125 Vdc 300 Vdc 800 mW 75 Vdc 60 Vdc 125 Vdc (Act. >65%) 300 Vdc 800 mW 93 Vdc 83 Vdc 250 Vdc 500 Vdc 1 W 130 Vdc 96 Vdc

2.1.9 Operation Outputs (Raise/Lower Tap) and Auxiliary Outputs 2 contacts normally open for each operation, one of which is configurable internally to closed, and auxiliary contacts (depends on model) normally open. I DC maximum limit 60 A (1 s.) (with resistive load) I DC continuous service 16 A (with resistive load) Close 5000 W Breaking capability (with resistive load) 240 W - max. 5 A - (48 Vdc) 110 W (80 Vdc - 250 Vdc) 2500 VA Break (L/R = 0.04 s) 120 W at 125 Vdc Switching voltage 250 Vdc Momentary close time trip contacts remain closed 100 ms. Break delay

2.1 Technical Data

2.1-5


2.1.10 Transducer Inputs 0-5mA or 2.5mA Transducers Input Impedance: 511 Measurement Accuracy 0.2 % or 3A (the greater) 4-20mA Transducers Input Impedance: 220 Measurement Accuracy 0.2 % or 3A (the greater) Voltage Transducers (for 125Vdc and 250Vdc) Input Impedance:


2.1-6

BRTV1110D


Plastic Fiber Optics (1 mm) Wavelength 660 nm Transmitter Minimum Power - 16 dBm Receiver Sensitivity - 39 dBm RS232C Port Signals Terminal unit DB-9 (9-pin) connectors Pin 5 - GND Pin 2 - RXD Pin 3 - TXD RS232C Full MODEM Port Signals Terminal unit DB-9 (9-pin) connectors Pin 1 - DCD Pin 2 - RXD Pin 3 - TXD Pin 4 - DTR Pin 5 - GND Pin 6 - DSR Pin 7 - RTS Pin 8 - CTS Pin 9 - RI RS485 Port Signals Used signals: Pin 4 - (A) TX+ / RX+ Pin 6 - (B) TX- / RX- RJ45 Port Signals Used signals: Pin 1 - TX+ Pin 2 - TX- Pin 3 - RX+ Pin 4 - N/C Pin 5 - N/C Pin 6 - RX- Pin 7 - N/C Pin 8 - N/C Electrical Bus Port Signals Used signals: Pin 1 - High Pin 2 - Low Pin 3 - GND

2.1 Technical Data

2.1-7


IRIG-B 123 and 003 B: 100pps 1: Amplitude modulated wave 0: By pulse width 2: 1kHz/1ms 0: Without carrier 3: BCD, SBS 3: BCD, SBS Type BNC connector Input impedance 41 , 211 or 330 (*) Default impedance 211 Maximum input voltage 10 V Synchronization Precision 1ms. When the device is receiving a IRIG-B signal for synchronization both Date and Time settings will not be available through the HMI. It is possible to configure one of the auxiliary outputs to check the IRIG-B signal status. This output will remain active as long as the IRIG-B signal reception is correct. All the IEDs are also designed to give an indication for both the loss and recovery of such IRIG-B signal by generating the particular event. (*) Selectable internally by the manufacturer.


2.1-8

BRTV1110D


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