Overview
The GE SR489-P5-HI-A20-E is a high-performance, multi-functional generator management relay designed specifically for industrial applications. It integrates various protection and control functions to ensure the safety and reliability of generators under diverse operating conditions. This product is applicable in fields such as power generation, transmission, distribution, and renewable energy systems.
Parameters
Model: SR489-P5-HI-A20-E Manufacturer: General Electric (GE) Series: SR489 Series Phase current input: 5 A phase CT auxiliary Control power supply: 90-300 VDC and 70-265 VAC (48-62 Hz) Analog output: 4 to 20 mA Fuse current rating: 2.5 A Fuse type: 5x20mm HRC SLO-BLO Littelfuse Operating temperature range: -20℃ to +70℃ Protection class: IP20 Dimensions: 300mm x 250mm x 200mm Weight: 10kg Product Features
High precision and reliability: Offers high precision, high reliability, and fast response time, meeting various generator protection requirements. Versatility: Provides multiple protection functions, including overload protection, short-circuit protection, overvoltage protection, undervoltage protection, frequency protection, power protection, differential protection, etc. User-friendly interface: Equipped with an enhanced LCD display, allowing users to view value messages, diagnostic information, and set values. It supports password-protected changes and storage of set values. Communication interfaces: Supports multiple communication protocols such as RS232, RS485, and Ethernet, facilitating integration with other devices. Modular design: Modular structure for easy installation and maintenance. High safety: Relay contacts must ensure an appropriate insulation level, suitable for low-voltage applications.
Structure and Composition
Display: Enhanced LCD display, larger than basic displays, supporting 40-character display. Input/output ports: Include twelve RTD inputs, six output relays, two RS485 communication ports, and four VT inputs. Communication ports: Support Modbus RTU or DNP 3.0 protocols, up to 19200 bps. Analog input/output: Four isolated 4-20 mA analog inputs and outputs. CT inputs: Seven CT inputs for three-phase output/three-phase neutral and ground current detection, plus a separate safety and filter ground.
Application Fields
Power generation: Used for generator protection in thermal power generation, hydroelectric power generation, nuclear power, wind power generation, solar power generation, etc. Transmission and distribution: For protection and control of transmission and distribution systems. Industrial automation: Suitable for protection of industrial equipment such as pumps, fans, compressors, conveyors, mixers, etc. Renewable energy systems: Used for protection of renewable energy systems such as wind energy and solar energy. Commercial and construction: For generator protection in commercial and construction sectors, ensuring continuity and safety of power production. Hospitals and data centers: For protection of critical equipment in hospitals and data centers, ensuring continuity of medical services and data security. Transportation: For generator protection in the transportation field. Distributed energy systems: For protection and control of distributed energy systems.
Installation and Maintenance
Installation method: Supports DIN rail mounting or panel mounting. Installation environment: Should be installed by qualified technicians in a dry and dust-free environment. Maintenance: Regular maintenance is required to ensure optimal performance and service life. Refer to the product manual for specific maintenance methods. Fault diagnosis: Provides rich diagnostic and maintenance functions, facilitating troubleshooting and system optimization.
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