Double-isolation structure of vacuum circuit breaker

The utility model discloses a double-isolation structure of a vacuum circuit breaker. The double-isolation structure comprises a transverse support connected with a mechanism box. The transverse support is longitudinally connected with three vacuum bubble insulation supports in sequence from front t...

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Bibliographic Details
Main Authors CHEN QIANG, CHEN ZHONG, CHEN TONGZHENG
Format Patent
LanguageChinese
English
Published 29.03.2022
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model discloses a double-isolation structure of a vacuum circuit breaker. The double-isolation structure comprises a transverse support connected with a mechanism box. The transverse support is longitudinally connected with three vacuum bubble insulation supports in sequence from front to back. A vacuum bubble and a connecting rod transmission mechanism for controlling the opening and closing of the vacuum bubble are arranged in the vacuum bubble insulation support, and an upper isolation moving contact lifting assembly and a lower isolation moving contact lifting assembly which are used for connecting the contact finger assembly are arranged at the two ends of the vacuum bubble insulation support; and the upper isolation moving contact lifting assembly and the lower isolation moving contact lifting assembly are arranged on the same straight line. According to the utility model, the lifting motion of the upper isolation moving contact and the lower isolation moving contact is driven through the tr
Bibliography:Application Number: CN202121974386U