Power receiving system

Details Power receiving system Power receiving system

1994-11-14

1995-11-14

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Feeder protection in distribution networks

361 62, 361 64, 361 67, H02H 726

Patent

active

054672414

ABSTRACT:
In a power receiving system, a network transformer, a protector breaker and a current detector are connected between the load side of each of a plurality of network lines and a network bus, a breaker is connected to the primary side of the network transformer, the current detector being operative to detect an accident current on the secondary side of the network transformer, and relays or an operation controller is provided which is responsive to the detection signal to open the breaker and protector breaker to switch off accident currents on the primary and secondary sides of the network transformer, whereby the protective range is so expanded as to cover a line section between the network transformer and the protector breaker and the scale of the overall power receiving system is reduced.

REFERENCES:
patent: 3921059 (1975-11-01), Birman et al.
patent: 4354215 (1982-10-01), van der Scheer
patent: 4639817 (1989-01-01), Cooper et al.
patent: 4873601 (1989-10-01), Wakasa
patent: 4903160 (1990-02-01), Elmore et al.

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