GE SR489-P1-HI-A20-E

¥999.00

The GE SR489-P1-HI-A20-E is a microprocessor-based generator management relay by GE Multilin, designed for small-to-medium generators, delivering protection, control, and diagnostics in power generation and industrial settings. It integrates overcurrent, overvoltage, undervoltage, under/overfrequency, and phase reversal protection, with a 1A phase CT input (P1) and 4-20mA analog outputs (A20) for seamless integration with SCADA systems. The GE SR489-P1-HI-A20-E features an enhanced LCD display (E) for real-time parameter monitoring and RS232 communication for remote configuration via EnerVista software. Its dual-slope phase differential curve ensures accurate fault detection, while 10ms relay operation time and 50ms energy metering update rate enable rapid response to electrical anomalies. The GE SR489-P1-HI-A20-E is panel-mounted with a draw-out design for hot-swappable maintenance, reducing downtime by 60% vs. fixed-mount alternatives. It is certified for IEC 60529 and UL 508, operating reliably in -25°C to +50°C environments with 36Vpk isolation voltage for enhanced safety.

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Description

Product Description

The GE SR489-P1-HI-A20-E is a microprocessor-based generator management relay by GE Multilin, designed for small-to-medium generators, delivering protection, control, and diagnostics in power generation and industrial settings. It integrates overcurrent, overvoltage, undervoltage, under/overfrequency, and phase reversal protection, with a 1A phase CT input (P1) and 4-20mA analog outputs (A20) for seamless integration with SCADA systems. The GE SR489-P1-HI-A20-E features an enhanced LCD display (E) for real-time parameter monitoring and RS232 communication for remote configuration via EnerVista software. Its dual-slope phase differential curve ensures accurate fault detection, while 10ms relay operation time and 50ms energy metering update rate enable rapid response to electrical anomalies. The GE SR489-P1-HI-A20-E is panel-mounted with a draw-out design for hot-swappable maintenance, reducing downtime by 60% vs. fixed-mount alternatives. It is certified for IEC 60529 and UL 508, operating reliably in -25°C to +50°C environments with 36Vpk isolation voltage for enhanced safety.

Product Parameters

Parameter Specification
Model GE SR489-P1-HI-A20-E
Type Generator Management Relay
Brand GE Multilin
Phase Current Input P1 (1A phase CT secondary)
Analog Output A20 (4-20 mA)
Control Power 90-300 VDC, 70-265 VAC
Frequency Range 48-62 Hz
Relay Operation Time 10 ms
Energy Metering Update Rate 50 ms
Display Enhanced LCD (E)
Communication RS232, IRIG-B TTL compatible
Operating Temperature -25°C to +50°C
Mounting Panel-mounted (draw-out)
Certifications IEC 60529, UL 508
Isolation Voltage 36 Vpk

Advantages and Features

  1. Comprehensive Protection: The GE SR489-P1-HI-A20-E offers overcurrent, overvoltage, undervoltage, under/overfrequency, phase reversal, and dual-slope phase differential protection for complete generator safeguarding.
  2. Fast Response & Accuracy: 10ms relay operation time and 50ms energy metering update rate ensure rapid fault detection and precise monitoring.
  3. Enhanced User Interface: The enhanced LCD display (E) provides real-time parameter visibility, while RS232 communication enables remote configuration via EnerVista software.
  4. Hot-Swap Maintenance: Draw-out design allows replacement without system shutdown, minimizing downtime in critical power applications.
  5. Wide Power Compatibility: 90-300 VDC and 70-265 VAC control power range ensures adaptability to diverse industrial power systems.

Application Cases in Application Fields

  • Industrial Cogeneration Plant: The GE SR489-P1-HI-A20-E protects 4×1MW gas generators, reducing false trips by 25% vs. legacy relays and enabling 15-minute hot-swap during outages.
  • Data Center Backup Generators: It monitors 3×500kW diesel generators, providing underfrequency/overfrequency protection and 4-20mA output for remote load shedding control.
  • Offshore Oil Platform: The GE SR489-P1-HI-A20-E safeguards 2×2MW gas turbines, with -25°C operation ensuring reliability in subsea environments.
  • Water Treatment Plant: It integrates with SCADA to protect 6×300kW pump generators, using phase reversal protection to prevent motor damage from reverse rotation.

Comparisons with Competing Products

Feature GE SR489-P1-HI-A20-E Competitor A (Schneider Electric Sepam 20) Competitor B (ABB Relion 615)
Phase CT Input 1A (P1) 5A only 1A/5A selectable
Analog Output 4-20 mA (A20) 0-20 mA 4-20 mA
Relay Operation Time 10 ms 20-30 ms 15-20 ms
Display Enhanced LCD Basic LCD Color LCD
Hot-Swap Yes (draw-out) No Yes
Communication RS232, IRIG-B Modbus RTU only Ethernet, Modbus TCP
Price Range $1,200-$1,800 $1,500-$2,200 $1,800-$2,500

Selection Suggestions and Precautions

  • Selection Suggestions
    1. Select the GE SR489-P1-HI-A20-E for small-to-medium generators requiring comprehensive protection, fast response, and hot-swap maintenance.
    2. Pair with surge protectors and voltage regulators in unstable grid environments to enhance transient resilience.
    3. Use with EnerVista software for remote configuration and real-time monitoring, optimizing operational efficiency.
  • Precautions
    1. Ensure CT secondary compatibility (1A) to avoid measurement errors and relay misoperation.
    2. Verify control power (90-300 VDC/70-265 VAC) matches the system to prevent damage to the GE SR489-P1-HI-A20-E.
    3. Follow lockout-tagout during hot-swap to prevent electrical hazards in live generator environments.
    4. Calibrate annually to maintain 10ms operation time and 50ms metering accuracy for reliable fault detection.

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