Fault current interrupter and explosive disconnector for surge a

Details Fault current interrupter and explosive disconnector for surge a Fault current interrupter and explosive disconnector for surge a

1985-11-01

1988-03-29

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361117, 361131, H02H 322

Patent

active

047348232

ABSTRACT:
A fault current interrupting disconnector, or fault disconnector, for a surge arrester operates to separate an electrical lead or ground lead wire from a damaged arrester and to interrupt the current flowing through the damaged arrester. The new fault disconnector includes an explosive charge, a tube of ablative material in a surrounding housing which co-acts with the tube to form a venting chamber, and a conductor extending through a portion of the chamber and through the tube. Excessive current heats and explodes the charge. The explosion pulls the conductor from an elongate connection, through the chamber portion and on through the tube; whereby arcing is first delayed, then is initiated in the chamber and then is drawn into and extinguished within the tube.

REFERENCES:
patent: 2315320 (1943-03-01), Earle
patent: 2607869 (1952-08-01), Stoelting et al.
patent: 2860210 (1958-11-01), Stoelting et al.
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patent: 3803524 (1974-04-01), Schmalz et al.
patent: 4204238 (1980-05-01), Stetson
patent: 4471402 (1984-09-01), Cunningham
patent: 4503414 (1985-03-01), Sykes et al.

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