Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1993-03-19
1994-10-11
Pellinen, A. D.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200144AP, 200148R, H01H 3342, H01H 3350
Patent
active
053549597
ABSTRACT:
A double-break type circuit breaker includes two resistor contacts which are to be connected in parallel with respectively two main contacts when the main contacts are closed. An engagement mechanism is provided for linking the main contacts operated by a first hydraulic operation apparatus and the resistor contacts operated by a second hydraulic operation apparatus.
REFERENCES:
patent: 4215256 (1980-07-01), Sakaguchi et al.
patent: 4454394 (1984-06-01), Toyoda
patent: 4581510 (1986-04-01), Bischofberger et al.
Hidaka Mikio
Hirano Yoshiki
Yoshizumi Toshiaki
Friedhofer Michael A.
Mitsubishi Denki & Kabushiki Kaisha
Pellinen A. D.
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