Description
Product Overview
The GE SR489 – P5 – LO – A1 is a high – performance generator management relay by GE Multilin. As part of the 489 series, it is engineered to provide comprehensive protection and control for generator systems in industrial setups. This relay serves as a critical component in ensuring the safe and efficient operation of generators. It monitors multiple parameters such as current, voltage, and frequency, and can quickly respond to any abnormal conditions. The SR489 – P5 – LO – A1 has a wide range of applications, from small – scale industrial plants to large – scale power generation facilities. Its advanced features enable precise control and protection, reducing the risk of generator failures and enhancing the overall reliability of the power generation process. With its ability to interface with various generator – related devices, it plays a pivotal role in optimizing the performance of generator systems, making it an invaluable asset in the realm of industrial automation.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | SR489 – P5 – LO – A1 |
| Manufacturer | GE Multilin |
| Product Type | Generator Management Relay |
| CT Inputs | 5 A |
| Control Power | 20 – 60 VDC / 20 – 48 VAC |
| Analog Inputs | 10 |
| Analog Outputs | 0 – 1 mA |
| Output Relays | 6 |
| Serial Ports | RS232, 2 rear RS485 |
| Status Indicators | 22 |
| Operating Temperature Range | – 40 °C to + 60 °C |
| Humidity Tolerance | Up to 95% non – condensing |
| Frequency | 48 – 62 Hz |
Main Features and Advantages
Precise Parameter Monitoring: The GE SR489 – P5 – LO – A1 can accurately monitor multiple generator parameters. With 10 analog inputs, it can detect even the slightest changes in variables like current and voltage. This precision allows for early detection of potential issues, preventing major breakdowns.
Comprehensive Protection Functions: It offers a wide array of protection features. The over – current, over – voltage, and overload protection mechanisms safeguard the generator from harmful electrical conditions. In case of an over – heat situation, the relay can quickly take action to prevent damage to the generator components.
Flexible Communication Options: Equipped with RS232 and two rear RS485 serial ports, the SR489 – P5 – LO – A1 enables seamless communication with other devices in the industrial control network. It can transmit real – time data about the generator’s status, facilitating remote monitoring and control.
User – Friendly Interface: The front – panel 40 – character vacuum fluorescent display and keypad make it easy for operators to set parameters, view the generator’s status, and access diagnostic information. This user – friendly design reduces the learning curve for maintenance staff.
Comprehensive Protection Functions: It offers a wide array of protection features. The over – current, over – voltage, and overload protection mechanisms safeguard the generator from harmful electrical conditions. In case of an over – heat situation, the relay can quickly take action to prevent damage to the generator components.
Flexible Communication Options: Equipped with RS232 and two rear RS485 serial ports, the SR489 – P5 – LO – A1 enables seamless communication with other devices in the industrial control network. It can transmit real – time data about the generator’s status, facilitating remote monitoring and control.
User – Friendly Interface: The front – panel 40 – character vacuum fluorescent display and keypad make it easy for operators to set parameters, view the generator’s status, and access diagnostic information. This user – friendly design reduces the learning curve for maintenance staff.
Application Field
Power Generation Plants: In large – scale power generation plants, the GE SR489 – P5 – LO – A1 is used to protect and control generators. It ensures that the generators operate within safe parameters, maximizing power output while minimizing the risk of failures. For example, it can monitor the voltage and frequency of generators in a coal – fired power plant to maintain grid – compatible power supply.
Industrial Manufacturing Facilities: Many industrial manufacturing plants rely on generators for their power needs. The SR489 – P5 – LO – A1 is deployed to protect these generators. In a steel mill, for instance, it can protect the generators that power the heavy – duty machinery, ensuring continuous production.
Commercial Buildings with Backup Generators: In commercial buildings like hospitals, hotels, and data centers, backup generators are crucial for uninterrupted power supply. The GE SR489 – P5 – LO – A1 is used to manage and protect these backup generators. In a hospital, it ensures that the generator can quickly take over in case of a power outage, maintaining life – support systems and other critical equipment.
Industrial Manufacturing Facilities: Many industrial manufacturing plants rely on generators for their power needs. The SR489 – P5 – LO – A1 is deployed to protect these generators. In a steel mill, for instance, it can protect the generators that power the heavy – duty machinery, ensuring continuous production.
Commercial Buildings with Backup Generators: In commercial buildings like hospitals, hotels, and data centers, backup generators are crucial for uninterrupted power supply. The GE SR489 – P5 – LO – A1 is used to manage and protect these backup generators. In a hospital, it ensures that the generator can quickly take over in case of a power outage, maintaining life – support systems and other critical equipment.
Related Products
GE SR489 – P5 – LO – A20: Similar to the SR489 – P5 – LO – A1, it is also a generator management relay in the 489 series. However, it has a 4 – 20 mA analog output instead of the 0 – 1 mA output of the A1 model, providing different options for specific application requirements.
GE 469 Motor Protection Relay: While the SR489 – P5 – LO – A1 is for generator protection, the 469 Motor Protection Relay is designed specifically for safeguarding motors. It protects motors from various electrical faults and abnormal operating conditions.
GE 735 Feeder Protection Relay: This relay is focused on protecting feeders in power distribution systems. Unlike the SR489 – P5 – LO – A1 which deals with generators, the 735 Feeder Protection Relay ensures the safe operation of power feeders, protecting them from over – current, short – circuit, and other faults.
GE SR489 – P1 – LO – A20 – E: It is an enhanced version of a related generator management relay. It may have additional features or better performance in certain aspects compared to the SR489 – P5 – LO – A1, such as more advanced communication capabilities or improved protection algorithms.
GE Multilin 489 – P5 – LO – A20 – E: Another upgraded model within the 489 series. It likely offers enhanced functionality, perhaps with better accuracy in parameter monitoring or more reliable protection mechanisms, giving users more choices based on their specific needs.
GE 469 Motor Protection Relay: While the SR489 – P5 – LO – A1 is for generator protection, the 469 Motor Protection Relay is designed specifically for safeguarding motors. It protects motors from various electrical faults and abnormal operating conditions.
GE 735 Feeder Protection Relay: This relay is focused on protecting feeders in power distribution systems. Unlike the SR489 – P5 – LO – A1 which deals with generators, the 735 Feeder Protection Relay ensures the safe operation of power feeders, protecting them from over – current, short – circuit, and other faults.
GE SR489 – P1 – LO – A20 – E: It is an enhanced version of a related generator management relay. It may have additional features or better performance in certain aspects compared to the SR489 – P5 – LO – A1, such as more advanced communication capabilities or improved protection algorithms.
GE Multilin 489 – P5 – LO – A20 – E: Another upgraded model within the 489 series. It likely offers enhanced functionality, perhaps with better accuracy in parameter monitoring or more reliable protection mechanisms, giving users more choices based on their specific needs.
Installation and Maintenance
Pre – installation preparation: Before installing the GE SR489 – P5 – LO – A1, carefully check the power supply voltage and frequency to ensure they match the relay’s specified range of 20 – 60 VDC / 20 – 48 VAC and 48 – 62 Hz. Inspect the integrity of the wiring and connection terminals. Clean the installation area to prevent dust and debris from affecting the relay’s performance. Also, verify that the CT inputs are correctly sized for the generator’s current.
Maintenance recommendations: Regularly monitor the SR489 – P5 – LO – A1 for any signs of overheating or abnormal behavior. Check the status indicators on the front panel to identify any potential issues. Periodically clean the relay to prevent dust accumulation, which could affect its operation. Inspect the wiring connections to ensure they remain tight. If any problems are detected, refer to the user manual for troubleshooting steps or contact GE’s technical support.
Maintenance recommendations: Regularly monitor the SR489 – P5 – LO – A1 for any signs of overheating or abnormal behavior. Check the status indicators on the front panel to identify any potential issues. Periodically clean the relay to prevent dust accumulation, which could affect its operation. Inspect the wiring connections to ensure they remain tight. If any problems are detected, refer to the user manual for troubleshooting steps or contact GE’s technical support.
Product Guarantee
GE stands firmly behind the quality of the GE SR489 – P5 – LO – A1. The product undergoes rigorous testing during the manufacturing process to meet high – quality standards. GE offers a one – year warranty for the SR489 – P5 – LO – A1. In case of any quality – related issues within this period, GE will provide prompt repair or replacement services. Additionally, GE’s experienced technical support team is available to assist customers with installation, operation, and troubleshooting. This demonstrates GE’s confidence in the product’s quality and its commitment to ensuring customer satisfaction.
