GE SR750 750-P5-G5-S5-HI-A20-R-E Feeder Management Relay

The GE SR750 750-P5-G5-S5-HI-A20-R-E is a high-performance Feeder Management Relay in the SR750 Series, designed for advanced protection, monitoring, and control of electrical feeders in industrial settings. It offers a comprehensive range of features tailored for efficient feeder management and precise fault detection. With robust functionality and versatile integration capabilities, this relay ensures optimal system performance and reliability.

Key Features and Technical Specifications

The GE relay provides accurate measurements, advanced protection algorithms, and a wide voltage range for diverse applications. Below is a detailed breakdown of its technical specifications:

Technical Specifications

Specification	Details
Manufacturer	GE (General Electric)
Model Number	SR750 750-P5-G5-S5-HI-A20-R-E
Product Type	Feeder Management Relay
Series	SR750 Series
Phase Current Input	5 Amp
Ground Current Input	5 Amp
Zero Sequence Sensitive Current Input	5 Amp
Voltage Input Range (DC)	80 to 300 V DC
Voltage Input Range (AC)	70 to 265 V AC
Frequency Range	48/62 Hz
Analog Output	Eight 4-20 mA Channels
Breaker Status Indicator	Red Breaker Closed LED
Protection Features	Overcurrent, Ground Fault, Phase Loss
Communication Protocols	Modbus RTU, DNP3, IEC 61850
Environmental Rating	IP 54 (Dust and Water Protection)
Mounting Type	Panel or Rack Mountable
Operating Temperature	-20°C to +70°C
Weight	2.5 kg (5.5 lbs)
Power Consumption	15 Watts Maximum
Inputs	3-phase current, ground fault, and sensitive current inputs
Output Type	8 channels, 4-20 mA analog outputs
User Interface	LCD Display, LED Indicators

Functions and Applications

The GE SR750 750-P5-G5-S5-HI-A20-R-E Feeder Management Relay ensures precise control and protection for electrical feeders. It continuously monitors phase current, ground current, and sensitive current inputs, ensuring that any irregularities or faults are immediately detected. It uses overcurrent protection and ground fault detection to maintain the safety and efficiency of your electrical distribution system. Additionally, the Red Breaker Closed LED indicator provides quick visual feedback on breaker status, ensuring quick intervention when required.

This relay is ideal for applications that require reliable feeder management, including:

Power Generation Plants: For safeguarding electrical feeders in power distribution systems.
Industrial Facilities: To ensure stable operation of feeders feeding critical equipment.
Oil and Gas: Protecting electrical feeders used for monitoring and controlling industrial operations.
Utility and Distribution: For reliable protection of feeders in electrical grids and substations.

Installation and Compatibility

The GE SR750 750-P5-G5-S5-HI-A20-R-E is compatible with both AC and DC systems, providing flexibility in various environments. The relay’s wide voltage range (80–300 V DC and 70–265 V AC) ensures compatibility with most electrical systems. It supports 8 channels of 4-20 mA analog outputs, providing flexibility in integrating with external monitoring systems. This relay can be installed in panel or rack-mounted configurations, depending on system needs.

For ease of operation, the relay features an LCD display and LED indicators, which offer clear visibility of system status and faults. Additionally, it supports communication protocols such as Modbus RTU, DNP3, and IEC 61850, ensuring seamless integration with a wide range of control and monitoring systems.

Conclusion

The GE Feeder Management Relay provides a highly reliable and flexible solution for feeder protection and monitoring. With its multi-channel analog outputs, robust protection features, and wide voltage input range, this relay ensures continuous system performance in critical industrial applications.