H - Electricity – 02 – H
Patent
H - Electricity
02
H
317/25
H02H 9/06 (2006.01) H01T 2/02 (2006.01) H01T 4/20 (2006.01)
Patent
CA 1102406
PROTECTIVE GAP DEVICES FOR PROTECTING CIRCUIT BREAKERS ABSTRACT OF THE DISCLOSURE In a protective gap device for protecting a circuit breaker, there are provided a cylindrical metallic shell, a high voltage electrode unit, and a low voltage electrode unit. The high and low voltage electrode units are re- spectively provided with a main electrode, a trigger electrode, and a cylindrical electrode plate, each of the trigger electrodes having a rod-shaped electrode so as to form a trigger gap between the main electrode and the trigger electrode, whereby the main discharge is induced between the main electrodes by the two trigger discharges created across the trigger gaps.
307636
Menju Shinichi
Ohshima Iwao
Takahashi Shigeru
Fetherstonhaugh & Co.
Tokyo Shibaura Denki Kabushiki Kaisha
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