G30

Overview

The GE Multilin G30 is a generator management relay designed to deliver comprehensive protection, control, monitoring, and metering for generator applications.

Protection and Control

• Overall unit differential including transformer

• Restricted ground fault

• Split phase protection

• Loss of excitation and overexcitation

• Third harmonic neutral undervoltage

• Generator unbalance detection

• Reverse and low forward power protection

• Accidental energization protection

• Synchronism check

• Phase sequence reversal for pumped storage applications

Monitoring and Metering

• Metering: Current, voltage, power, energy, frequency

• Oscillography: Analog and digital parameters at 64 samples/cycle

• Event Recorder: 1024 time-tagged events with 0.5 ms scan of digital inputs

• Data Logger: 16 channels with sampling rate up to 1 sample/cycle

• Security Audit Trail: Tracks all configuration changes to the G30 system

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