Alternative Power Source for Network Protector Relay

摘要

A relay for control of a network protector located on a low voltage side of a transformer with a set of three phases, the relay having at least one route for power to be provided to the relay from at least one of the set of three phases taken from a transformer side of the network protector so that the relay may have power and be functional before the network protector is closed to provide power into a dead network.

主权项

1. A relay for control of a network protector located on a low voltage side of a transformer with a set of three phases,
the relay having a set of at least one input port to receive power from at least one of the set of three phases on a network side of the network protectors, wherein power provided from the network side of the network protector is available for operation of the relay; and the relay providing power to a communication device that communicates information about the transformer and the network protector to a remote location;wherein the improvement comprises:
at least one route for power to be provided to the relay from at least one of the set of three phases taken from a transformer side of the network protector so that the relay may have power and be functional before the network protector is closed to provide power into a dead network; and the communication device may transmit information from the relay connected to the dead network before any network protector is closed to allow power to energize the dead network.