Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection
Patent
1979-03-26
1980-12-16
Miller, J. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transformer protection
337202, H02H 704, H01H 8502
Patent
active
042401224
ABSTRACT:
A protective device for electrical power distribution equipment includes a removable fuse holder and an integral load switch. The protective device may be affixed to a grounded metal enclosure, such as an oil-filled transformer, into which the protective device extends. The fuse holder may be removed from the protective device for checking or replacement with a minimal opening into the enclosure into which the protective device extends. A suitable load switch actuator is provided for controlling current flow through a fuse in the fuse holder. This load switch actuator also provides an interlock arrangement to prevent removal of the fuse holder from, as well as insertion of the fuse holder into, the protective device unless the load switch is open, thus ensuring that interruption and initation of current flow through the fuse in the removable fuse holder is controlled by the load switch.
REFERENCES:
patent: 2161427 (1939-06-01), Papp
patent: 2866032 (1958-12-01), McCloud
patent: 2918557 (1959-12-01), Link
patent: 3178613 (1965-04-01), Dornbush et al.
patent: 3292048 (1966-12-01), Swoish et al.
patent: 3366761 (1968-01-01), Smith
patent: 3519970 (1970-07-01), Lusk et al.
patent: 3628092 (1971-12-01), Keto
patent: 3699490 (1972-10-01), Macemon
patent: 3748621 (1973-07-01), Sakats
patent: 3829810 (1974-08-01), Giegrich
patent: 3916259 (1975-10-01), Russell et al.
patent: 3916260 (1975-10-01), Westrom et al.
patent: 3916364 (1975-10-01), Cooper
Gealow Jon Carl
LaPorte Ronald J.
McGraw-Edison Company
Miller J. D.
Schroeder L. C.
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