Limiting device of bilateral double-break isolating switch grounding knife switch contact

The invention discloses a limiting device of a bilateral double-break isolating switch grounding knife switch contact. The limiting device is characterized by comprising a trumpet-shaped body (7), wherein a lower opening (2) of the trumpet-shaped body (7) is big, and an upper opening (1) of the trum...

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Bibliographic Details
Main Authors HAN RIDONG, TAO XUYAN, HAO DERONG, HAN CHENGXI, XU QIANG, SONG CHUANKAI, LIU DAPENG, JIANG LUHAI, CAO JUN
Format Patent
LanguageChinese
English
Published 12.06.2013
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The invention discloses a limiting device of a bilateral double-break isolating switch grounding knife switch contact. The limiting device is characterized by comprising a trumpet-shaped body (7), wherein a lower opening (2) of the trumpet-shaped body (7) is big, and an upper opening (1) of the trumpet-shaped body (7) is small; and the upper opening (1) is provided with an upper edge (3) which is provided with a welding face (4). With the adoption of the limiting device of the bilateral double-break isolating switch grounding knife switch contact, the problem that a vertical connecting rod cannot accurately enter the inner part of a fixed contact as a moving contact limiting device deforms due to the ageing of the equipment and the like; once being installed, the limiting device needs not to be dismantled; and any auxiliary tool is not needed, so that the risks of operation are reduced, and the health and stable operation of a power grid is guaranteed.
Bibliography:Application Number: CN2013154246