REF545KM133BAAA  Feeder protection terminal

● Feeder protection terminal is used for protection and control of medium voltage power grid.
Measurement and monitoring
● 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 device man-machine interface uses 17×19 lines of large LCD graphic display
The LCD screen can be separated from the device for easy access
Install on the switch cabinet
● 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 voltage protection, overvoltage and low voltage protection
Protection, thermal overload protection, circuit breaker failure protection and self
Dynamic 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 current, line voltage and phase voltage, zero sequence
Current and zero sequence voltage, frequency, power factor, active power sum
Measurement of reactive power and electrical energy, etc
● Advanced power quality monitoring function can monitor the total current and voltage
Harmonic distortion rate (THD), voltage surge in a short period of time
Drop and instantaneous interruption

REF543KM127AAAA

● Equipment status monitoring, including circuit breaker status display, tripping
Loop monitoring and internal self-test of feeder terminals
● Time synchronization can be achieved through the switching input contact. synchronization
Pulses can be spaced per minute or per second
● With concurrent inspection, frequency protection, capacitor bank protection
And control and current and voltage harmonic component measurement and other functions
● Fault location can be used in various types of power grids as well
A grounding system, including a small resistance/small reactance grounding system
● Additional features include check synchronization, frequency protection, capacitors
Group protection and control
● RTD/ Analog measurement module can be used for temperature, current/electricity
Signal output for pressure measurement and mA quantity
● It has three communication interfaces: one is used to communicate with the PC
Ground communication, the other two can be used with substation automation system
Time communication port
● IEC is supported through the SPA-ZC 400 communication gateway
61850 agreement
● ProfibusDPV1 communication protocol can be supported through SPA-ZC 302 communication gateway
● Can select the protection function display mode, ANSI code, IEC
Symbol or ABB module name
● Member of ABB Substation Automation system