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General Electric SR489-P1-HI-A20-E Generator Management Relay
Manufacturer: General Electric
Product Number: SR489-P1-HI-A20-E
Category: Generator Management Relay
Supply Voltage: 90-300 V DC / 70-265 V AC
CT Input Type: 1 A secondary
Analog Output: 4-20 mA (4 channels)
RTD Inputs: 12 channels for temperature monitoring
Communication Interfaces: RS232, RS485, 10BaseT Ethernet
Supported Protocols: Modbus RTU/TCP, DNP 3.0
Operating Temperature: -40°C to +60°C
Product Description
The GE SR489 – P1 – HI – A20 – E is a high – performance generator management relay, an integral part of the advanced SR 489 series by General Electric. In the realm of power systems, this relay plays a pivotal role in ensuring the reliable operation and comprehensive protection of generators.
Designed with precision, the SR489 – P1 – HI – A20 – E comes equipped with a phase current input of P1 = 1 A phase CT secondaries, allowing for accurate measurement and monitoring of electrical currents. Its control power can operate within a wide range, specifically HI = 90 to 300 V DC and 70 to 265 V AC at 48 to 62 Hz, making it adaptable to various power supply conditions. The 4 – 20 mA analog outputs (A20) facilitate seamless integration with other components in the power system, enabling smooth data transfer and control. The enhanced display (E) with a larger LCD provides operators with clear visibility of crucial information, such as generator status, setpoints, and actual values. This feature simplifies the monitoring and configuration process, contributing to more efficient power management.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | SR489 – P1 – HI – A20 – E |
| Manufacturer | GE |
| Product Type | Generator Management Relay |
| Series | SR 489 |
| Phase Current Input | P1 = 1 A phase CT secondaries |
| Control Power | 90 – 300 V DC; 70 – 265 V AC at 48 – 62 Hz |
| Analog Outputs | 4 – 20 mA |
| Display | Enhanced (larger LCD) |
| Operating Temperature | – 25 °C to 50 °C |
| Relative Humidity | Below 95% |
| Altitude | Less than 2000 meters |
| Mounting Method | Panel or 19″ rack |
| Duty Cycle | > 10% |
| Underfrequency Pickup Accuracy | ± 0.02 Hz |
| Dielectric Strength | Complies with UL 508 standard |
Comprehensive Protection Functions: The SR489 – P1 – HI – A20 – E offers an extensive array of protection features. It includes differential protection, 100% stator grounding protection, grounding direction overcurrent protection, negative sequence overcurrent protection, high setting value overcurrent protection, low voltage lockout overcurrent protection, over / low voltage protection, over / low frequency protection, distance protection, and reverse power protection. These functions work in unison to safeguard the generator across diverse operating states, minimizing the risk of damage from electrical faults.
Flexible Communication and Integration: This relay supports direct integration with most DCS (Distributed Control System) and SCADA (Supervisory Control and Data Acquisition) systems. It also adheres to communication protocols such as DNP 3.0, Modbus RTU, and Modbus TCP/IP. This flexibility enables seamless data exchange with other components in the power system, facilitating remote monitoring and control, and enhancing overall system efficiency.
High – Quality Construction and Reliability: Constructed with top – notch electronic components and advanced manufacturing techniques, the SR489 – P1 – HI – A20 – E is engineered to endure harsh industrial environments. It has been subjected to rigorous quality control and testing procedures, ensuring stable and reliable performance over an extended period. This reliability is crucial for power systems, where uninterrupted operation is of utmost importance.
User – Friendly Configuration: The relay features a flexible configuration mechanism. Users can easily program and set it up according to the specific requirements of different power systems, either through programming or dedicated configuration software. This adaptability allows the SR489 – P1 – HI – A20 – E to be tailored to various generator types and operating conditions.
Power Generation Plants: In power generation facilities, the GE SR489 – P1 – HI – A20 – E is extensively utilized to protect and manage generators. It constantly monitors the electrical parameters of generators, such as current, voltage, and frequency. In case of any abnormal conditions, it swiftly takes protective actions, like tripping the circuit breaker to prevent damage to the generator. This ensures the stable and efficient operation of power generation equipment, contributing to a reliable power supply.
Industrial Enterprises: Many industrial enterprises rely on generators for their power needs, especially in situations where grid power is unreliable or for backup power. The SR489 – P1 – HI – A20 – E is used to safeguard these generators. For example, in manufacturing plants, it helps maintain the integrity of the power supply to production lines, preventing disruptions that could lead to production losses. It also enables the efficient monitoring and control of power consumption within the industrial complex.
Commercial Buildings: In commercial buildings, generators are often installed as emergency power sources. The SR489 – P1 – HI – A20 – E ensures that these generators are protected and operate optimally. It can be integrated with the building’s electrical management system, allowing facility managers to monitor the generator’s status remotely. This is particularly important for large commercial complexes, such as shopping malls and hotels, where continuous power is essential for customer service and safety.
Installation and Maintenance
Pre – installation preparation: Before installing the SR489 – P1 – HI – A20 – E, ensure that the power supply voltage falls within the specified range of 90 – 300 V DC or 70 – 265 V AC at 48 – 62 Hz. Check the installation area for any sources of electromagnetic interference that could potentially disrupt the relay’s operation. Familiarize yourself with the wiring diagram provided in the product manual to correctly connect the phase current inputs, control power, and analog outputs. Also, verify that the operating temperature and relative humidity conditions of the installation site are within the specified – 25 °C to 50 °C and below 95% respectively.
Maintenance recommendations: Regularly inspect the SR489 – P1 – HI – A20 – E for any signs of physical damage, such as cracks in the casing or loose connections. Monitor the display to check for any abnormal readings or error messages. Periodically clean the relay to remove dust and debris, as these can affect its performance over time. If any issues arise, refer to the detailed troubleshooting guide in the product manual. For complex problems, it is advisable to contact GE’s technical support team, who can provide expert assistance and guidance.
Product Guarantee
GE stands firmly behind the quality of the SR489 – P1 – HI – A20 – E with a comprehensive product guarantee. The relay comes with a standard warranty period, during which GE assures that the product is free from defects in materials and workmanship. In the event of any quality – related issues, GE’s dedicated and highly skilled technical support team is readily available. They can offer detailed guidance on installation, troubleshooting, and if necessary, arrange for product repair or replacement. This commitment not only reflects GE’s confidence in the reliability and performance of the SR489 – P1 – HI – A20 – E but also provides customers with peace of mind when integrating this crucial component into their power systems.
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General Electric SR489-P1-HI-A20-E Generator Management Relay
Manufacturer: General Electric
Product Number: SR489-P1-HI-A20-E
Category: Generator Management Relay
Supply Voltage: 90-300 V DC / 70-265 V AC
CT Input Type: 1 A secondary
Analog Output: 4-20 mA (4 channels)
RTD Inputs: 12 channels for temperature monitoring
Communication Interfaces: RS232, RS485, 10BaseT Ethernet
Supported Protocols: Modbus RTU/TCP, DNP 3.0
Operating Temperature: -40°C to +60°C
Product Description
The GE SR489 – P1 – HI – A20 – E is a high – performance generator management relay, an integral part of the advanced SR 489 series by General Electric. In the realm of power systems, this relay plays a pivotal role in ensuring the reliable operation and comprehensive protection of generators.
Designed with precision, the SR489 – P1 – HI – A20 – E comes equipped with a phase current input of P1 = 1 A phase CT secondaries, allowing for accurate measurement and monitoring of electrical currents. Its control power can operate within a wide range, specifically HI = 90 to 300 V DC and 70 to 265 V AC at 48 to 62 Hz, making it adaptable to various power supply conditions. The 4 – 20 mA analog outputs (A20) facilitate seamless integration with other components in the power system, enabling smooth data transfer and control. The enhanced display (E) with a larger LCD provides operators with clear visibility of crucial information, such as generator status, setpoints, and actual values. This feature simplifies the monitoring and configuration process, contributing to more efficient power management.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | SR489 – P1 – HI – A20 – E |
| Manufacturer | GE |
| Product Type | Generator Management Relay |
| Series | SR 489 |
| Phase Current Input | P1 = 1 A phase CT secondaries |
| Control Power | 90 – 300 V DC; 70 – 265 V AC at 48 – 62 Hz |
| Analog Outputs | 4 – 20 mA |
| Display | Enhanced (larger LCD) |
| Operating Temperature | – 25 °C to 50 °C |
| Relative Humidity | Below 95% |
| Altitude | Less than 2000 meters |
| Mounting Method | Panel or 19″ rack |
| Duty Cycle | > 10% |
| Underfrequency Pickup Accuracy | ± 0.02 Hz |
| Dielectric Strength | Complies with UL 508 standard |
Comprehensive Protection Functions: The SR489 – P1 – HI – A20 – E offers an extensive array of protection features. It includes differential protection, 100% stator grounding protection, grounding direction overcurrent protection, negative sequence overcurrent protection, high setting value overcurrent protection, low voltage lockout overcurrent protection, over / low voltage protection, over / low frequency protection, distance protection, and reverse power protection. These functions work in unison to safeguard the generator across diverse operating states, minimizing the risk of damage from electrical faults.
Flexible Communication and Integration: This relay supports direct integration with most DCS (Distributed Control System) and SCADA (Supervisory Control and Data Acquisition) systems. It also adheres to communication protocols such as DNP 3.0, Modbus RTU, and Modbus TCP/IP. This flexibility enables seamless data exchange with other components in the power system, facilitating remote monitoring and control, and enhancing overall system efficiency.
High – Quality Construction and Reliability: Constructed with top – notch electronic components and advanced manufacturing techniques, the SR489 – P1 – HI – A20 – E is engineered to endure harsh industrial environments. It has been subjected to rigorous quality control and testing procedures, ensuring stable and reliable performance over an extended period. This reliability is crucial for power systems, where uninterrupted operation is of utmost importance.
User – Friendly Configuration: The relay features a flexible configuration mechanism. Users can easily program and set it up according to the specific requirements of different power systems, either through programming or dedicated configuration software. This adaptability allows the SR489 – P1 – HI – A20 – E to be tailored to various generator types and operating conditions.
Power Generation Plants: In power generation facilities, the GE SR489 – P1 – HI – A20 – E is extensively utilized to protect and manage generators. It constantly monitors the electrical parameters of generators, such as current, voltage, and frequency. In case of any abnormal conditions, it swiftly takes protective actions, like tripping the circuit breaker to prevent damage to the generator. This ensures the stable and efficient operation of power generation equipment, contributing to a reliable power supply.
Industrial Enterprises: Many industrial enterprises rely on generators for their power needs, especially in situations where grid power is unreliable or for backup power. The SR489 – P1 – HI – A20 – E is used to safeguard these generators. For example, in manufacturing plants, it helps maintain the integrity of the power supply to production lines, preventing disruptions that could lead to production losses. It also enables the efficient monitoring and control of power consumption within the industrial complex.
Commercial Buildings: In commercial buildings, generators are often installed as emergency power sources. The SR489 – P1 – HI – A20 – E ensures that these generators are protected and operate optimally. It can be integrated with the building’s electrical management system, allowing facility managers to monitor the generator’s status remotely. This is particularly important for large commercial complexes, such as shopping malls and hotels, where continuous power is essential for customer service and safety.
Installation and Maintenance
Pre – installation preparation: Before installing the SR489 – P1 – HI – A20 – E, ensure that the power supply voltage falls within the specified range of 90 – 300 V DC or 70 – 265 V AC at 48 – 62 Hz. Check the installation area for any sources of electromagnetic interference that could potentially disrupt the relay’s operation. Familiarize yourself with the wiring diagram provided in the product manual to correctly connect the phase current inputs, control power, and analog outputs. Also, verify that the operating temperature and relative humidity conditions of the installation site are within the specified – 25 °C to 50 °C and below 95% respectively.
Maintenance recommendations: Regularly inspect the SR489 – P1 – HI – A20 – E for any signs of physical damage, such as cracks in the casing or loose connections. Monitor the display to check for any abnormal readings or error messages. Periodically clean the relay to remove dust and debris, as these can affect its performance over time. If any issues arise, refer to the detailed troubleshooting guide in the product manual. For complex problems, it is advisable to contact GE’s technical support team, who can provide expert assistance and guidance.
Product Guarantee
GE stands firmly behind the quality of the SR489 – P1 – HI – A20 – E with a comprehensive product guarantee. The relay comes with a standard warranty period, during which GE assures that the product is free from defects in materials and workmanship. In the event of any quality – related issues, GE’s dedicated and highly skilled technical support team is readily available. They can offer detailed guidance on installation, troubleshooting, and if necessary, arrange for product repair or replacement. This commitment not only reflects GE’s confidence in the reliability and performance of the SR489 – P1 – HI – A20 – E but also provides customers with peace of mind when integrating this crucial component into their power systems.
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