489-P5-HI-A20-T-H

Overview

489-P5-HI-A20-T-H is a GE Multilin generator management relay.

Identity

• Model: 489-P5-HI-A20-T-H

• Type: Generator Management Relay

• Manufacturer: GE Multilin

Power Supply Options

• LO Range:

  • DC: 20–60 V DC

  • AC: 20–48 V AC @ 48–62 Hz

• HI Range:

  • DC: 90–300 V DC

  • AC: 70–265 V AC @ 48–62 Hz

• Power Consumption: 45 VA max, 25 VA typical

• Ride-through Time: 30 ms without supply voltage

Frequency Tracking

• Inputs: Va for wye, Vab for open delta

• Minimum Signal: 6 V

• Tracking Rate: 10 Hz/sec

Current Transformer Inputs

• CT Primary Range: 10–50,000 A

• CT Secondary Options: 1 A or 5 A

• Conversion Range: 0.02–20 × CT

• Accuracy:

  • < 2 × CT: ±0.5% of 2 × CT

  • ≥ 2 × CT: ±1% of 20 × CT

• Burden: < 0.2 VA at rated load

• CT Withstand Capability:

  • 1 second @ 80 × rated current

  • 2 seconds @ 40 × rated current

  • Continuous @ 3 × rated current

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