REF 54_ Product Guide - ABB Oy Distribution Automation - #3

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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Issued: June 1999 Status: Updated Version: F/06.07.2005 Data subject to change without notice Features · Feeder terminal for protection, control, measurement and supervision of medium voltage networks. · Voltage and current measurement via conventional measuring transformers or current sensors and voltage dividers. · Fixed human-machine interface including a large graphic display, or an external display module for flexible switchgear installation. · Protection functions including e.g. nondirectional and directional overcurrent and earth-fault protection, residual voltage, overvoltage and undervoltage protection, thermal overload protection, CBFP and auto-reclosing. · Control functions including local and remote control of switching objects with synchro-check, status indication of the switching objects and interlockings on bay and station level · Measurement of phase currents, phase-tophase and phase-to-neutral voltages, neutral current and residual voltage, frequency, power factor, active and reactive power and energy. · Advanced power quality measurement capabilities. Total harmonic distortion (THD) measurements for both currents and voltages. Measurement for short duration voltage variations like sags, swells and short interruptions. · Condition monitoring including circuitbreaker condition monitoring, trip circuit supervision and internal self-supervision of the feeder terminal. · Time synchronization via binary input. Synchronization pulse once per second or once per minute. · Fault locator for short circuits in all kinds of network and for earth-faults in effectively earthed and low resistance/low reactance earthed networks. · Additional functions including synchrocheck, frequency protection, capacitor bank protection and control. · RTD/analogue module for temperature measurement, current/voltage measurement and mA-outputs. · Communication over three communication interfaces: one for local communication with a PC and two for simultaneous dual port communication for e.g. a substation communication system and a substation monitoring system. · Selectable function block naming: ANSI device numbers, IEC symbols or ABB naming. · Support for IEC 61850 protocol through the SPA-ZC 400 adapter. · Support for Profibus-DPV1 protocol through the SPA-ZC 302 adapter · Part of the ABB Distribution Automation system. Fig. 1 Setting group example window. 3