Short-circuit fixture and method for replacing 220 kV tubular bus stretchable cable clamp in electrified manner

Abstract

The invention relates to a short-circuit fixture for replacing a 220 kV tubular bus stretchable cable clamp in an electrified manner. The short-circuit fixture comprises a tubular bus clamp, a fixed bracket, a drainage wire pressure plate, a hinged frame, a support rod, a sliding jacket, an insulated handle and a double-ended diversion line; the tubular bus clamp and the fixed bracket are hinged; the drainage wire pressure plate is fixed at two sides of the tubular bus clamp through a bolt, and connected to the double-ended diversion line; the fixed bracket and the support rod are fixedly connected; the sliding jacket sleeves the support rod; the sliding jacket is hinged with the tubular bus clamp through the hinged frame fixed at the front end of the sliding jacket; a pressure spring is arranged on the support rod between the fixed bracket and the sliding jacket; and the insulated handle is arranged at the tail end of the support rod. The fixture disclosed by the invention is small in volume, light in weight and convenient to transport and store, and can be adaptive to an operating environment of a 220kV tubular bus of a transformer substation; therefore, electrified replacement of a heat emitting stretchable cable clamp becomes reality; the problem that no tool is used for electrified disassembly of the tubular bus and installation of the heat emitting stretchable cable clamp can be solved; and the short-circuit fixture is safe, convenient and rapid to operate.

Description

technical field [0001] The invention relates to the field of live maintenance of 220kV pipe busbars, in particular to a short-connecting jig for live replacement of 220kV pipe busbar telescopic clamps and a method for using the same. Background technique [0002] The outdoor 220kV tube bus power distribution device of the substation has the characteristics of small footprint, simple structure, clear layout, and large flow rate. At the end of the last century, outdoor 220kV tube bus power distribution devices have been widely used in China. At present, the 220kV tube bus of substations put into operation by the power supply company affiliated to the State Grid Liaoning Power Grid has basically been in operation for more than 20 years. The outdoor 220kV pipe bus telescopic clamps in the operation of Liaoning Power Grid have been affected by many factors such as long-term operation, uneven construction technology, frequent bad weather, heavy power supply load, oxidation of the ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a shorting jig for live replacement of the 220kV pipe bus telescopic clamp and its use method, which realizes the live removal and installation of the telescopic clamp on the running pipe bus, and solves the problem of The original technology cannot carry out the technical problem of live removal and installation of telescopic clamps on the pipe busbar

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