High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices
Patent
1996-09-13
1998-06-30
Wong, Peter S.
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
337170, 337171, 337172, 337168, H01H 7110, H01H 8504
Patent
active
057737770
ABSTRACT:
A circuit-interrupting device for electrical power distribution and transmission systems is provided having improved handling provisions for removal and installation with respect to conventional mountings. The handling provisions permit the circuit-interrupting device to pivot about the lower hinge of the mounting before the circuit-interrupting device is lifted out of the mounting via a handling tool. This permits the dimensions of the circuit-interrupting device to be greater than conventional circuit-interrupting devices. For example, in a preferred embodiment, the circuit-interrupting device includes exhaust diverter structure which directs exhaust away from the mounting, the exhaust diverter structure extending beyond the maximum dimensions which allow the circuit-interrupting device to be directly lifted out of the mounting hinge, i.e. the exhaust diverter structure interferes with the mounting if the circuit-interrupting device is lifted in a direction out of the mounting. The handling provisions include a handling loop on the circuit-interrupting device that is spaced away from the trunnion of the circuit-interrupting device which is received by the lower hinge of the mounting. The location of the handling loop is selected so as to provide suitable pivoting of the circuit-interrupting device before lifting out of the mounting hinge.
REFERENCES:
patent: 4321575 (1982-03-01), Koszewa et al.
patent: 4414527 (1983-11-01), Biller
patent: 5502427 (1996-03-01), Scherer et al.
patent: 5532668 (1996-07-01), Fennell
Lapacek James V.
Patel Rajnikant B.
S&C Electric Company
Wong Peter S.
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