489-P1-LO-A20-E | GE Multilin Motor Management Relay Base Unit

Description 

The 489-P1-LO-A20-E is a GE Multilin Motor Management Relay Base Unit, designed for comprehensive motor protection and control. It features overload, short-circuit, and ground fault detection, with advanced monitoring and diagnostic capabilities. This unit ensures reliable motor operation and enhanced system safety.

Technical Specifications 

Information About 489-P1-LO-A20-E

The GE Multilin 489-P1-LO-A20-E Motor Management Relay Base Unit is a highly sophisticated device designed for effective motor protection and control. This base unit offers advanced functionalities suitable for complex motor management applications, emphasizing precision, reliability, and adaptability.

Power Supply and Inputs
The relay operates with a +24 V DC analog current input supply, with a maximum current draw of 100 mA. This power supply is critical for ensuring stable operation and reliability of the relay's functions.

Energy Metering and Update Rate
For accurate and real-time monitoring, the unit provides an energy metering update rate of 50 milliseconds. This rapid update capability allows for timely detection and response to changes in motor performance, ensuring optimal operation and protection.

Ingress Protection
The relay adheres to the IEC60529 standard for ingress protection, which ensures that the device is safeguarded against dust and water ingress, enhancing its durability and reliability in various operational environments.

IRIG-B DC Shift and TTL Output
The unit includes IRIG-B DC shift for precise timing and synchronization, and TTL output for digital signal interfacing. These features contribute to the accuracy and integration of the relay with other system components.

Current Inputs and Conversion Range
The relay supports neutral and current input conversion ranges from 0.02 to 20 times the current transformer (CT) rating. This extensive range allows the device to accommodate a wide variety of motor sizes and configurations.

Phase Differential and Curve Shape
The phase differential curve shape is dual slope, offering enhanced protection by distinguishing between normal operational conditions and fault conditions. This dual slope characteristic improves the relay's ability to detect and respond to different types of phase imbalances.

Relay Operation Time and Voltage Phase Reversal
The relay operates with a response time of 10 milliseconds, ensuring rapid action in the event of a fault. Additionally, the voltage phase reversal timing accuracy ranges from 200 to 400 milliseconds, providing precise detection and correction of phase reversal conditions.

Overall, the GE Multilin 489-P1-LO-A20-E Motor Management Relay Base Unit is engineered for high-performance motor protection. Its features include a robust power supply, rapid energy metering, and a wide current conversion range, all within a durable, protected enclosure. These capabilities make it an essential component for ensuring reliable and efficient motor management in diverse industrial applications.

Manufacturer information

GE Multilin is a leading provider of protection and control solutions for electrical energy systems. Their products include advanced relays, meters, and software used globally in industrial, utility, and renewable energy applications, ensuring efficient and reliable operation of electrical grids and equipment.

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