Check-Synch Relays: NPSC800-1 and -2
The NPSC800 relays replace the STS7041 (static) relay for checking synchronism between two sources or across a bus-tie. There are two variants:
NPSC800-1 (available in the "R-case" modular design as NPSC800R) checks synchronisation only.
NPSC800-2 (available in the "R-case" design as NPSC800RE) allows operation of live/dead line and bus. It can also manage the reconnection of two sections supplied by the same source.
ANSI function code: 25
These relays are part of the NP800 range, offering multi-function protection and communication via Modbus (RS485) or Modbus TCP (Ethernet). A full brochure is available on the NP800 range page
NPSC800-1 (available in the "R-case" modular design as NPSC800R) checks synchronisation only.
NPSC800-2 (available in the "R-case" design as NPSC800RE) allows operation of live/dead line and bus. It can also manage the reconnection of two sections supplied by the same source.
ANSI function code: 25
These relays are part of the NP800 range, offering multi-function protection and communication via Modbus (RS485) or Modbus TCP (Ethernet). A full brochure is available on the NP800 range page