H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 33/12 (2006.01) H01H 33/16 (2006.01) H01H 33/52 (2006.01) H01H 31/32 (2006.01)
Patent
CA 2068142
A gas isolated disconnecting switch provides a sufficient restriking surge suppressing function with no adverse effect on the operation of a circuit breaker in the system, enabling the circuit breaker to reliably interrupt a fault current. In the closed condition of the switch, a main stationary member engages a main movable member, and an auxiliary movable member 17 engages an auxiliary stationary member. A portion of an auxiliary conductor which passes through a cylindrical magnetic body is short-circuited by the main stationary member and the main movable member and there is no influence on the operation of the circuit breaker. During an opening operation of the switch, the auxiliary movable member disengages with a time delay, whereupon the current flows through the portion of the auxiliary conductor that passes through the cylindrical magnetic body 9 whereby to achieve a sufficient restriking surge suppressing function.
Sectionneur à gaz d'isolement fournissant une capacité suffisante de limitation de surtension sans incidence négative sur le fonctionnement d'un disjoncteur de système, ce qui permet au disjoncteur de couper un courant anormalement élevé. Lorsque l'interrupteur est en position fermée, un élément stationnaire principal est en prise avec un élément mobile principal, et un élément mobile auxiliaire (17) est en prise avec un élément auxiliaire stationnaire. Une partie d'un conducteur auxiliaire qui passe dans un corps magnétique cylindrique est court-circuitée par l'élément stationnaire principal et l'élément mobile principal, sans incidence négative sur le fonctionnement du disjoncteur. Lorsque l'interrupteur est mis en position ouverte, l'élément mobile auxiliaire cesse d'être en prise après un certain temps, et le courant traverse la partie du conducteur auxiliaire qui passe dans le corps magnétique cylindrique (9), ce qui permet d'obtenir une capacité suffisante de limitation de surtension.
Ishikawa Toshio
Kurosawa Yukio
Ozawa Jun
Hitachi Ltd.
Kirby Eades Gale Baker
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