L90-N00-HCH-F8L-H6U-L6N-NXX-SXX-UXX-W7C

About the L90-N00-HCH-F8L-H6U-L6N-NXX-SXX-UXX-W7C

Offering the high degree of modularity inherent to the Universal Relay family, General Electric Multilin’s L90-N00-HCH-F8L-H6U-L6N-NXX-SXX-UXX-W7C is a configurable Line Current Differential System. It boasts complete protection as a distance device and/or a line differential device. 

The faceplate of the L90-N00-HCH-F8L-H6U-L6N-NXX-SXX-UXX-W7C offers a backlit liquid crystal display, an associated keypad, over forty LED indicators, and an RS232 port. Users can configure specific system values to be displayed by the backlit LCD, providing practical information to employees near the relay. The keypad and backlit LCD can also be used in tandem to configure system values, though this process is done much more efficiently through General Electric Mutlilin’s EnerVista UR software program. The aforementioned RS232 port allows a direct connection from the relay to a computer running the UR software program, and the program offers a variety of tools for relay management and monitoring. Lastly, the LEDs on the faceplate can indicate various system statuses, such as when trips and alarms are triggered within the system.

GE Multilin’s L90-N00-HCH-F8L-H6U-L6N-NXX-SXX-UXX-W7C offers a variety of protective functions that are capable of addressing faults and/or shielding system components when dangerous conditions arise within the system. These protective measures include ground differential protection, overvoltage and undervoltage protection, and segregated current differential protection. The Ground Differential Protection function uses a vectorial sum of all in-zone phase currents to determine the neutral differential current. This can then be used to protect against low-current single line-to-ground faults, working with the phase differential function to enhance system performance.