Feeder terminal protection device
REF543 Feeder terminal protection device
REF543 Feeder terminal protection device
The REF541, REF543, and REF545 series feeder terminals are designed to protect, control, measure, and monitor medium-voltage power grids. They are suitable for different main wiring modes, such as single bus, double bus and double switch wiring. The protection function also supports different types of power grids, such as neutral ungrounded systems, resonant grounded systems and small resistance grounded systems. The feeder terminal can also be applied to the protection and control of three-phase asynchronous motors and reactive compensation shunt capacitor banks. In addition to the protection, measurement, control and condition monitoring functions, the feeder terminal also provides a complete PLC logic programmable function, which enables the automation functions and sequential logic control functions required for the substation integrated automation system to be integrated into one unit. The feeder terminal can also use IEC 60870-5-103 protocol, DNP 3.0 protocol, Modbus protocol, SPA protocol, or LON network to communicate with the upper layer equipment. Moreover, with the point-to-point communication function supported by LON network, information can be exchanged between feeder terminals through communication, reducing the hard wiring between feeder terminals.
REF541 / REF543 / REF545 Feeder terminal Features:
- Feeder terminals are used for protection, control and measurement of medium voltage power networks
And monitor - Can be used for power quality monitoring, protection, capacitor bank,Protection and control and motor protection
- Can use current and voltage sensors or traditional CT and PT
To perform current and voltage measurements - The man-machine interface of the device adopts a large LCD graphic display screen, and
The LCD display can be separated from the device for easy switching
Cabinet mounting - With protection, control, measurement, communication, power quality monitoring
Test and equipment status monitoring and other functions - Protection features include interphase overcurrent and connection with or without direction
Ground protection, zero sequence overvoltage protection, overvoltage and undervoltage
Protection, thermal overload protection, circuit breaker failure protection and
Automatic reclosing, etc - Control functions include circuit breakers, isolating switches and other control objects
Local and remote control and simultaneous detection, control object like
State display and interlock display between screen cabinet and substation host - Measurement functions include phase current, line voltage and phase voltage, zero
Sequence current and zero sequence voltage, frequency, power factor, active work
And reactive power and electrical energy measurement and so on - Equipment status monitoring, including circuit breaker status display, tripping
Loop monitoring and internal self-test of feeder terminals - With concurrent inspection, frequency protection, capacitor bank protection
And control and current and voltage harmonic component measurement and other functions - RTD/ Analog measurement modules can be used for temperature, current/electricity
Voltage measurement and signal output of m A quantity - It has three communication interfaces: one is used to communicate with the PC
Ground communication, the other two are used far through the substation monitoring system
Square communication
Transformer differential protection RET670 1MRK504155-BEN
REF545 feeder protection devices usually consist of current and voltage transformers, relays, circuit breakers, etc. It can be configured and optimized according to different protection requirements, such as overcurrent protection, quick-break protection, ground protection, etc. When the line fails, the REF545 feeder protection device can quickly detect the fault signal and take appropriate protective actions, such as tripping, alarm, etc., depending on the type and severity of the fault.
REF543 Feeder terminal protection device
Model: S-113N
Old order number 3BHB018008R0001
New order number 3BHB018008R0101
Net weight: 175 kg
Country of origin: Poland
Phase module
Model: S-093H
Old order number: 3BHB030478R0009
New order number: 3BHB030478R0309
Net weight: 220 kg
Country of origin: Poland
Phase module
S-073N 3BHB009884R0021
S-093H 3BHB009885R0004
S-113H 3BHB018008R0003
ABB 5SHY series IGCT SCR
5SHY35L4510、5SHY3545L0003、5SHY3545L0005、5SHY3545L0009、5SHY35L4520，5SHY3545L0014，5SHY35L4512、5SHY35L4520 5SXE10-0181 AC10272001R0101，5SHY3545L0009 3BHB013085R0001 3BHE009681R0101 GVC750BE101，5SHY5045L0020，5SHY3545L0010/3BHB013088R0001
