GE Multilin 489-P5-HI-A20-E-H | Generator Protection Relay
$175.00
$565.00
Deskripsi
Product Description
The GE Multilin 489-P5-HI-A20-E-H is an advanced motor and generator management relay designed for medium and large industrial motors. Engineered for continuous operation in demanding environments, this relay delivers comprehensive protection, monitoring, and control functions.
It safeguards motors and generators against electrical and mechanical faults, including overloads, short circuits, ground faults, phase imbalances, voltage fluctuations, and overspeed conditions. The enhanced display and configurable logic allow precise local control and integration with SCADA or DCS systems.
Key Features
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Complete protection: Overload, short circuit, ground fault, phase imbalance, under/overvoltage, under/overspeed
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Motor and generator control: Start/stop, trip, restart inhibit, sequential trip configuration
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Built-in metering: Current, voltage, power factor, MW/MVar, MVA demand, RPM speed via key phaser input, RTDs
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Advanced diagnostics: Event recording, VT fuse failure detection, trip coil supervision, breaker failure protection
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Programmable logic for custom protection schemes
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Enhanced LCD display with intuitive navigation and status LED indicators
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Rugged industrial design with harsh environment conformal coating
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Communication options: RS485/Modbus, optional Ethernet for remote monitoring and integration
Technical Specifications
| Specification | Details |
|---|---|
| Relay Series | GE Multilin 489 |
| Function | Motor & Generator Management |
| Control Power | 90–300 VDC, 70–265 VAC, 48–62 Hz |
| CT Inputs | 5 A phase secondary |
| Analog Outputs | 4–20 mA (isolated) |
| Digital Inputs | 24 VDC at 20 mA max, assignable for sequential trips |
| Impedance Time Delay | 0.1–100.0 s (0.1 s steps) |
| Negative Sequence Overcurrent Pickup | 3–100% FLA (1% steps) |
| Phase Distance Characteristics | Offset Mho |
| RTD Inputs | 5 mA sensing current |
| Thermal Model Curve Biasing | Phase unbalance, Hot/Cold curve ratio, Stator RTD, Online/Offline cooling rate, Line voltage |
| Display | Enhanced LCD with keypad |
| Mounting | Panel-mounted drawout chassis |
| Dimensions | 266 × 191 × 63 mm |
| Weight | 18 lbs |
| Environmental | -40°C to +60°C |
Applications
Ideal for large motor control centers, generators, and critical industrial systems requiring continuous operation, fault protection, and comprehensive diagnostics. Suitable for integration in SCADA, DCS, and microgrid setups.
FAQ
Q: Can this relay monitor both motors and generators?
A: Yes, it supports both motor and generator management with configurable protection and metering functions.
Q: Does it support remote communication?
A: Yes, RS485/Modbus is standard, with optional Ethernet available for network integration.
Q: Can the relay be easily maintained?
A: The fully drawout case simplifies testing, maintenance, and CT shorts management.
Q: Are firmware updates supported?
A: Yes, flash memory allows easy firmware upgrades and simulation for testing.
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