GE Multilin SR737 Protection Relay

Feature & Principle

It is GE Multilin SR737 digital feeder protection relay, belongs to SR series 735/737 feeder protection system. It adopts true RMS sampling, supports phase timed/instantaneous overcurrent and earth fault protection, equipped with ANSI/IEC multiple inverse time curves. It has built-in metering, fault trip record, pre-fault data capture and protection simulation function. It uses draw-out pluggable structure, optional RS485 Modbus RTU communication to upload data to SCADA. This model is discontinued, only used for power distribution cabinet maintenance spare replacement.

Specifications

Model: SR737 Brand: GE Multilin (GE Vernova) Function: Phase overcurrent, earth fault protection, electrical measurement, fault recording CT secondary: 5A Communication: RS485 Modbus RTU Power supply: 70~265VAC / 90~300VDC Structure: Draw-out pluggable Application: Medium voltage distribution feeder, bus and transformer backup protection Certification: CE, IEC

Components & Diagnostics

Signal sampling unit, main control CPU, front panel indicator, communication circuit, multiple relay output contacts. Common faults: communication offline, measurement drift, false tripping, trip contact burnout, parameter loss.

Product Brief

SR737 feeder protection relay, GE Multilin distribution overcurrent protection spare widely used for substation medium voltage cabinet overhaul and replacement.