The GE Multilin series SR750-P5-G5-S5-HI-A20-R-T feeder management relay is a high-performance power system protection device from General Electric (GE). Designed for the protection, monitoring and control of power feeders, this relay offers a wide range of advanced functions and features.

The SR750-P5-G5-S5-HI-A20-R-T provides 5A phase current input, 5A zero sequence current input, and 5A sensitive ground current input for a variety of power system monitoring needs. Its control power supply is suitable for 88 to 300VDC or 70 to 265VAC @ 48 to 62Hz, ensuring a wide range of applicability and flexibility. In addition, the relay contains eight 4-20mA analog outputs to provide accurate system status information.

In terms of user interface, the SR750-P5-G5-S5-HI-A20-R-T is equipped with a 40-character display screen for accessing set points, actual values, and diagnostic information generated by tripping or alarm conditions. Twenty LED indicators clearly show relay status, system status, and tripping and alarm conditions.

SR750-P5-G5-S5-HI-A20-R-T

In terms of communication interfaces, the relay is equipped with a 10Mbps Ethernet port, RS232, RS485 and RS422 serial ports, and supports ModBus RTU, TCP/IP and DNP 3.0 Level 2 protocols, making integration with other devices and monitoring systems easy.

Protection features include directional time, instantaneous phase and ground overcurrent protection, directional sensitive ground and limited ground fault protection, reverse power protection, synchronization check, automatic bus switching or manual control. In addition, it has built-in metering functions, including current, voltage, sequence component, power, energy and voltage.

The introduction of the SR750-P5-G5-S5-HI-A20-R-T further enriched the GE Multilin series product line, providing a more comprehensive and efficient protection solution for power systems. It is suitable for power systems, infrastructure such as data centers, airports, hospitals, etc., ensuring the stable and safe operation of these critical systems. With its deep technology accumulation in the field of power and automation, General Electric (GE) continues to promote the development of industrial automation technology and contribute to the digital transformation of global industry.