GE SR489-P5-HI-A20-E

The GE SR489-P5-HI-A20-E is a generator management relay produced by General Electric (GE), belonging to the SR489 series. It is specifically designed for the protection, control, and monitoring of power generation systems. Its core functions include overload protection, short-circuit protection, under-voltage/over-voltage protection, frequency protection, and reverse power protection. It is applicable to various power generation systems such as gas turbines, water turbines, and wind turbines. Through modular design and flexible configuration, the product supports multiple communication protocols (such as Modbus, DNP3.0, IEC 61850), facilitating integration with upper-level computers.

Structure and Composition

Core Components

• Phase current input: 5 channels of 1 A phase CT secondary coils, supporting high-precision current detection.
• Control power supply: Supports a wide range of input (90-300 VDC or 70-265 VAC, 48-62 Hz).
• Analog output: 5 channels of 4-20 mA analog signal output for connecting to monitoring systems.
• Display screen: Enhanced LCD screen, supporting high-brightness display and intuitive operation.

Installation Methods

It supports DIN rail mounting or panel mounting, adapting to different installation environments.

Protection and Materials

• Protection level: IP20 (standard type) or IP65 (some models).
• Shell material: ABS plastic, lightweight design (approximately 1.8 kg).

Parameters

• Model: SR489-P5-HI-A20-E
• Series: SR489 / SR400 series
• Phase current input: 5 A (1 A phase CT secondary)
• Control power supply: 90-300 VDC / 70-265 VAC (48-62 Hz)
• Analog output: 4-20 mA (5 channels)
• Operating temperature: -20°C to +70°C (some models -40°C to +85°C)
• Storage temperature: -50°C to +90°C
• Dimensions: 144 x 144 x 112 mm (some models 110 x 66.8 x 50 mm)
• Weight: Approximately 1.8 kg (some models 1.5 lb)
• Communication protocols: Modbus RTU, RS485, DNP3.0, IEC 61850, etc.

Product Features

High Reliability and Safety

• Redundant design and self-diagnostic functions ensure long-term stable operation.
• Supports multiple protection mechanisms such as differential protection and ground fault detection.

Modularity and Flexibility

• Modular structure facilitates installation, maintenance, and upgrades.
• Protection parameters and communication protocols can be configured according to requirements.

User-Friendliness

• Large-size LCD display, supporting graphical interface and parameter setting.
• Simple and intuitive operation logic reduces the threshold for use.

Energy Efficiency

• Low-power design, suitable for harsh industrial environments.

Application Fields

Power Generation Systems

Industrial Automation

Renewable Energy

Marine and Rail Transit

Installation and Maintenance

Installation Method

Maintenance Requirements

Environmental Adaptability

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