System of protection against short circuits and fulminations

Details System of protection against short circuits and fulminations System of protection against short circuits and fulminations

1978-10-25

1981-05-26

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361178, H02H 316

Patent

active

042701589

ABSTRACT:
The present invention refers to a system of protection against electric current short circuits and fulminations, apt to be applied on any installation comprising an electric apparatus and a polyphase feeding cable connecting said apparatus to a socket through connection means. According to the invention, the installation comprises a screening of the electric apparatus and/or of the feeding cable, formed by a pair of spaced wire nets being electrically insulated one from the other, a two-phase auxiliary electric line with each phase connected to one of said wire nets, and a cutout circuit associated to said connection means for disconnecting the electric feeding in response to a short circuit between said two wire nets.

REFERENCES:
patent: 2614200 (1952-10-01), McNair
patent: 3525902 (1970-08-01), Davidson et al.
patent: 3728581 (1973-04-01), Adamo
patent: 3864581 (1975-02-01), Satyanarayana
patent: 4013924 (1977-03-01), Christensen et al.

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