750-P5-G1-S1-HI-A20-G-E

About the 750-P5-G1-S1-HI-A20-G-E

Featuring the enhanced faceplate option, General Electric Multilin’s 750-P5-G1-S1-HI-A20-G-E is a strong choice for feeder distribution management and protection needs. The relay is able to monitor, self-assess, and safeguard the system during normal operations, and can also function as a backup protection unit for power lines, buses, and transformers.  

The 750-P5-G1-S1-HI-A20-G-E is housed in the GE Multilin’s standard SR 750 series chassis. This case features a dustproof door and drawout construction. Outside of the chassis, the relay has an approximate width of eighteen centimeters, length of sixteen and a half centimeters, and a height of twenty-one and a half centimeters. The relay can be mounted on a standard 19-inch panel. It can be mounted alone or alongside other relays in the 750/760 series.

Multilin’s 750-P5-G1-S1-HI-A20-G-E implements two different security features to reduce unauthorized access to setpoint configuration; a hardware jumper required for keypad editing of setpoints and an eight character alphanumeric passcode that required for both keypad and EnerVista 750 setpoint editing. The relay’s factory default password of “0” has no actual effect on restricting setpoint management, so users must adjust the password if they would like security functions to operate correctly.

GE Multilin’s 1601-0120-AE manual offers a few warnings for successful operation of the relay. Primarily, the rear of the relay is highly dangerous while energized, as the high voltages can cause death or serious injury. Additionally, the secondary circuit of live CTs should not be opened for a similar reason. Finally, logic input wet contacts should be connected to voltages less than 300 V DC lest system damage occur.