GE Multilin 889 Generator Protection Relay

Feature & Principle

It belongs to GE Multilin 8 series intelligent electronic device. It samples voltage and current signals in real time, executes multiple protection algorithms, and outputs trip signal to breaker when abnormal condition occurs. It supports overcurrent, differential, reverse power, loss of excitation, overvoltage, undervoltage, frequency protection. It has event recording, oscillography, power metering and local HMI display function, can connect to SCADA system via network.

Specifications

Model: EP5P5G5HNNAANGMSFB3ASNBN (889) Brand: GE Multilin Protection function: Generator differential, reverse power, loss of excitation, over/under voltage, over/under frequency, phase overcurrent Communication: Ethernet, Modbus, DNP3, IEC61850 optional Power supply: 125/250 VDC or 120/240 VAC Installation: Panel mounting Display: Local LCD HMI Application: Hydro generator, gas turbine generator, steam turbine generator, unit transformer Certification: CE, UL

Components & Diagnostics

Main CPU board, analog acquisition board, digital input/output board, human-machine display panel, power supply module, communication module. Common faults: communication offline, analog signal drift, HMI display failure, DI/DO channel fault, power supply failure.

Product Brief

EP5P5G5HNNAANGMSFB3ASNBN generator protection relay, GE Multilin power system IED spare widely used for power plant generator protection cabinet maintenance and replacement.