REF543KB127AAAA REF 543 feeder terminal

Product name: REF 543 feeder terminal.
Applications: Suitable for protection and control of medium-sized three-phase asynchronous motors and shunt capacitor banks for reactive power compensation, and can also be used with different types of switchgear, including single bus, double bus and duplex systems.
Protection: Supports different types of networks, such as isolated neutral networks, resonant grounded networks, and partially grounded networks.
Communication features: includes SPA bus, LON bus, IEC 60870-5-103, IEC 61850 via SPA-ZC 400, Profibus DPV1 via SPA-ZC 302, DNP 3.0 and Modbus communication.
PLC functions: With a large number of PLC functions, it is possible to integrate multiple automation and sequential logic functions required for substation automation into a single unit.
Measuring function: Voltage and current are measured by conventional measuring transformers or current sensors and dividers.
Human machine interface: Fixed human machine interface, including large graphical display, or external display module, for flexible switchgear installation.
Extended functionality: includes protection, control, measurement, communication, power quality and condition monitoring.
Protection features include: non-directional and directional overcurrent and ground fault protection, residual voltage, overvoltage and undervoltage protection, thermal overload protection, CBFP and automatic reclosing.
Control features include: local and remote control of switching objects, status indication of switching objects, and interlocking at bay and station levels.
Measuring function: measuring phase current, phase difference and phase point voltage, residual current and voltage, frequency, power factor, active and reactive power and energy, etc.
Condition monitoring: including circuit breaker condition monitoring, trip circuit supervision and feeder terminal internal self-supervision.
Other functions: synchronization check, frequency protection, capacitor group protection and control, current and voltage harmonics measurement.
RTD/ Analog module: For temperature measurement, current/voltage measurement and ma output.
Communication interface: Communication is carried out through two communication interfaces, one for local communication with the PC and the other for remote communication through the substation communication system.
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REF543KM127AAAA