Description
1. Product Title
GE Multilin 489-P5-HI-A20-E-H – Generator & Motor Management Protection Relay
2. Product Overview
The 489-P5-HI-A20-E-H is an advanced generator and motor management relay from GE Grid Solutions, designed to provide comprehensive protection, control, and monitoring for medium- and high-voltage rotating equipment. As part of the Multilin 489 series, this relay integrates multiple protection functions into a single microprocessor-based platform.
Engineered for harsh industrial environments, the 489-P5-HI-A20-E-H features enhanced display capabilities and conformal coating for resistance against moisture, dust, and chemical exposure. It delivers precise fault detection, real-time diagnostics, and programmable logic, making it essential for safeguarding critical assets such as generators, large motors, and compressors. This relay helps reduce downtime, improve operational reliability, and support predictive maintenance strategies.
3. Technical Specifications
- Brand: GE Multilin (GE Grid Solutions)
- Model: 489-P5-HI-A20-E-H
- Warranty: One Year
- Condition: 100% New & Original
Detailed Specifications:
- Product Type: Generator / Motor Management Relay
- Control Power Supply: 90–300 VDC or 70–265 VAC, 48–62 Hz
- Phase CT Input: 5 A secondary
- Analog Outputs: 4–20 mA
- Digital Inputs: 24 VDC @ 20 mA max
- Communication: RS-485 (multiple baud rates supported)
- Frequency Range: 48–62 Hz
- Environmental Protection: Conformal coating for harsh environments
- Display: Enhanced LCD interface
- Protection Functions:
- Overcurrent / thermal overload
- Breaker failure detection
- Trip coil supervision
- Under/over voltage & frequency protection
- Impedance Time Delay: 0.1–100 s adjustable
- Weight: Approx. 7.7 kg
4. Key Features & Benefits
- Comprehensive Protection Functions:
Integrates multiple ANSI protection elements (overcurrent, thermal, voltage, frequency), reducing the need for separate relays. - Harsh Environment Conformal Coating:
Protects internal electronics from moisture, dust, and corrosive atmospheres, ensuring long-term reliability in offshore and industrial plants. - Advanced Monitoring & Diagnostics:
Provides real-time data, event logging, and fault analysis for predictive maintenance and faster troubleshooting. - Flexible Communication & Integration:
RS-485 and programmable interfaces enable seamless integration with DCS, SCADA, and plant automation systems. - Draw-Out Case Design:
Allows safe maintenance and replacement without interrupting CT circuits, improving operational safety.
5. Application Scenarios
- Power Generation (Generators & Turbines):
Protects generators from electrical faults such as overcurrent, reverse power, and frequency deviations. - Oil & Gas (Compressors & Pumps):
Ensures reliable operation of large motors and rotating equipment in hazardous environments. - Heavy Industry (Mining, Cement, Steel):
Used for high-power motor protection and monitoring in demanding industrial processes.
6. Frequently Asked Questions (FAQ)
Q: What is the primary function of the 489-P5-HI-A20-E-H?
A: It provides integrated protection, control, and monitoring for generators and large motors, ensuring safe and reliable operation.
Q: Is 489-P5-HI-A20-E-H compatible with legacy systems?
A: Yes, it supports standard communication protocols (e.g., RS-485) and can be integrated into existing protection schemes and SCADA/DCS systems with proper configuration.
