GE Multilin | 489-P5-HI-A20-E-H | Generator Management Relay

Product Description

The 489-P5-HI-A20-E-H Generator Management Relay from GE Multilin (GE Vernova / GE Grid Solutions) is part of the 489 Series, designed to provide advanced generator protection, monitoring, and control. Built with conformal coating for harsh environments, this relay integrates metering, programmable inputs, and diagnostic features to ensure reliable generator operation in demanding industrial settings.

Technical Specifications

• Manufacturer: GE Multilin (GE Vernova / GE Grid Solutions)

• Series: 489 Generator Management Relay

• Product Type: Generator Management Relay

• Model Number: 489-P5-HI-A20-E-H

• Protective Coating: Harsh environment conformal coating

• Case Type: Fully drawout with automatic CT shorts

• Control Power: 90–300 VDC; 70–265 VAC at 48–62 Hz

• CT Secondaries: 5 A phase

• Analog Outputs: Four (4) 4–20 mA outputs

• Digital Inputs Supply: 24 VDC at 20 mA max

• RTD Inputs: 5 mA sensing current; supports multiple RTD types

• Impedance Time Delay: 0.1–100.0 s (0.1 s increments)

• Negative Sequence Overcurrent Pickup: 3–100% FLA (1% steps)

• Phase Distance Characteristic: Offset mho

• Sequential Trip: Assignable to digital inputs 1–7

• Status LEDs: Trip, Auxiliary, Alarm, Service, Breaker Open/Closed, Hot Stator, Neg. Sequence, Ground, Loss of Field, VT Failure, Breaker Failure, In Service, Setpoint Access, RS232, RS485, Alt. Setpoints, Reset Possible, Message

• Accessories: EnerVista 489 Setup Software, SR 19‑1 Panel, SR 19‑2 Panel, SCI Module, Phase CT, HGF3, HGF8, collars (1⅜ in, 3 in)

• Metering Features: Voltage and current phasors, frequency, power factor, MW/Mvar/MVA demand, MWh, ±Mvarh demand, RTD monitoring, RPM speed with key phaser input

• Additional Features: Flash memory for firmware upgrades, simulation mode, VT fuse failure detection, trip coil supervision, breaker failure protection

• Shipping Weight: 7.7 kg (17 lbs)

• Country of Origin: Canada

Application Scenarios

This relay is widely used in:

• Generator protection systems for power plants and industrial facilities

• Grid integration requiring advanced monitoring and diagnostics

• Heavy‑duty environments where conformal coating ensures durability

FAQ

Q: Does the 489-P5-HI-A20-E-H support harsh environments?  A: Yes, it includes conformal coating for protection against humidity and contaminants.

Q: Can firmware be updated?  A: Yes, the relay uses flash memory for easy firmware upgrades.

Q: What metering functions are available?  A: It supports voltage/current phasors, frequency, power factor, MW/Mvar/MVA demand, and RTD monitoring.

Q: How does this model differ from standard 489 relays?  A: The 489-P5-HI-A20-E-H includes enhanced display, conformal coating, and expanded LED indicators compared to base models.