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

Abstract

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.

Description

Technical field: [0001] The invention relates to a limit device for a grounding switch contact of a bilateral double-break isolating switch, and belongs to the technical field of power system substation operation. Background technique: [0002] The limit of the grounding knife switch of the bilateral double-break isolating switch is mainly due to the function of the balance spring and the limit device located on the contact. Due to the long time of equipment operation and serious aging of the equipment, the limit device is deformed, and the knife switch is relatively A small change in position causes the limit stop to fail. When closing the grounding switch of this series, there are often situations such as jamming, improper operation, and failure to close. The degree and strength of the impact will easily cause damage to the equipment and break the supporting porcelain bottle, which increases the risk of operation and poses a serious threat to the safe operation of the pow...

AI Technical Summary

Problems solved by technology

[0002] The limit of the grounding knife switch of the bilateral double-break isolating switch is mainly due to the function of the balance spring and the limit device located on the contact. Due to the long time of equipment operation and serious aging of the equipment, the limit device is deformed, and the knife switch is relatively Minor changes in position, causing the limit stop to fail

When closing the grounding switch of this series, there are often situations such as jamming, improper operation, and failure to close. The degree and strength of the impact can easily cause damage to equipment and breakage of supporting porcelain bottles, which increases the risk of operation and poses a serious threat to the safe operation of the power grid.

Images