TOPAZ HVD3-RTU3 Remote Control Unit

Performs remote signaling, remote control, and remote measurement functions. The device performs remote control functions (remote signaling, remote control, and remote measurement). It is designed to operate as a switchgear cell at distribution, connection, and transformer substations of electrical networks with voltage classes of 6 ÷ 20 kV.  as part of remote control of substations with voltage classes of 35 ÷ 750 kV. TOPAZ HVD3-RTU5 Remote Control Unit. Performs the functions of remote signaling, remote control, remote measurement, and technical electricity metering.
  • Specifications
  • Modifications and legend

Specifications

Feature Value
Remote signalling channels
Number of channels 8
RS sensor scanning period, ms 0.5 ÷ 10
Discrete input channel input voltage, V 5 ÷ 220 (AC/DC)
Maximum input voltage, V 400
Starting current (10 ms), mA 20
Input current, A 1 ÷ 10
Integrated power supply 12 V, 200 mA
Input impedance, kOhm, at U:
5 ÷ 48 V 0.5 ÷ 9.6
48 ÷ 100 V 16 ÷ 50
100 ÷ 220 V 50 ÷ 220
Rated value of input currents, mA, at U:
5 ÷ 48 V 5 ÷ 10
48 ÷ 100 V 2 ÷ 3
100 ÷ 220 V 1 ÷ 3
Telemetry channels
Number of current measurement channels 1
Rated value of measured current (Ia, Ib, Ic), A 1
5
Current measurement range, A 0.01…1.5Irat
Maximum value of measured current (Ia, Ib, Ic), A 7,5
Power consumption of current circuits in nominal mode (for each phase), VA, max. 0,3
Verification period, years 10
Voltage discrete control channels
Number of channels 3
Controlled voltage for each phase, V 1 ÷ 310 (AC/DC)
Input impedance, MOhm 3,6
Remote control channels
Number of channels 3
Switching voltage, V 250 (AC), 350 (DC)
Load capacity of control circuits, A, max.:
continuously 1
1 s 5
0.3 s 15
0.03 s 40
RS comand action time, s 0.1 ÷ continuously
Number of operations under load, min. 100000
RS-485 communication interfaces
Ports 2
Baud rate, bit/s: up to 115,200
RS-485 interface communication protocol IEC 870-5-101, Modbus RTU
Mains specifications
Rated supply voltage, V 24 (DC)
Operating supply voltage range, V 15 ÷ 30
Current consumption (at 24 V), mA 150
Cold start time, max., s 2
Design
Mounting type DIN rail 35 mm
using a bracket
Case material metal
Case protection class IР51
Module dimensions (width х height х depth), mm 100 x 120 x 50
Weight, kg 0,6
Reliability performance
Mean time between failures, h 140000
Average time to restore operability at the operation facility (excluding the time of personnel arrival and if spare parts are available), min, max. 30
Average service life, years 30
Operating environment:
Ambient air temperature, 0С -40 to +70
Average humidity (non-condensing), % 5 ÷ 95 at 30 °C
Air pressure, kPa 60 ÷ 106.7

Modifications and legend

The designation structure of TOPAZ HVD3 series devices is shown below.

TOPAZ HVD3-Х, where Х is device modification:

TOPAZ HVD3-RTU1 Performs the functions of RS and RC.
8 RS channels,
3 discrete voltage control channels
3 RC channels,
2 RS-485 channels
TOPAZ HVD3-RTU3 Performs the functions of RS, RC, and TM.
1 current measurement channel,
3 voltage measurement channels,
8 RS channels,
3 discrete voltage control channels
3 RC channels,
2 RS-485 channels
TOPAZ HVD3-RTU5 Performs the functions of RS, RC, TM and technical electricity metering.
3 current measurement channels with 3I0 calculation,
3 voltage measurement channels,
8 RS channels,
3 discrete voltage control channels
3 RC channels,
2 RS-485 channels

TOPAZ HVD3-ЕМ3 Performs the functions of RS, TM and technical electricity metering.
3 current measurement channels with 3I0 calculation,
3 voltage measurement channels,
8 RS channels,
3 discrete voltage control channels
2 RS-485 channels
TOPAZ HVD3-RTU7 Performs the functions of RS, RC, TM and technical electricity metering.
4 current measurement channels,
3 voltage measurement channels,
12 RS channels,
3 discrete voltage control channels
3 RC channels,
2 RS-485 channels (copper/optic channel)