Vacuum insulated switchgear

High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Vacuum

Reexamination Certificate

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Details

C218S007000, C218S120000, C218S153000

Reexamination Certificate

active

07897890

ABSTRACT:
A vacuum insulated switchgear is provided with: an enclosure having a switch block defined by a grounded metal plate, a bus block positioned above the switch block, and a cable block positioned on the rear side of the bus block; a bus provided in the bus block and connected with a fixed contact of a vacuum double-break three-position switch; the vacuum double-break three-position switch provided in the switch block so that its movable contacts are positioned below its fixed contacts; an operating device provided in the switch block so as to be positioned below the vacuum double-break three-position switch; and a lever mechanism that couples together the movable contacts of the vacuum double-break three-position switch and the operating device.

REFERENCES:
patent: 6188034 (2001-02-01), Tsuzura et al.
patent: 6362445 (2002-03-01), Marchand et al.
patent: 6510046 (2003-01-01), Arioka et al.
patent: 7425687 (2008-09-01), Morita et al.
patent: 2007/0228014 (2007-10-01), Tsuchiya et al.
patent: 1047169 (2000-10-01), None
patent: 2000-306474 (2000-11-01), None
patent: 2004-282907 (2004-10-01), None
patent: 2006-059557 (2006-03-01), None
patent: 2006-238522 (2006-09-01), None
Final Office Action in corresponding Chinese Application No. 2007101418946 mailed Sep. 20, 2010 (with partial English translation).
Office Action in corresponding Chinese Application No. 2007101418946 mailed Aug. 28, 2009 (with partial English translation).
Office Action in corresponding Korean Application No. 2007-82904 mailed Sep. 24, 2010 (with partial English translation).

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