GW7 isolating switch transformed from GW17 isolating switch and method

Abstract

The invention relates to the technical field of on-site technical transformation and state maintenance of high-voltage isolating switches, in particular to a GW7 isolating switch transformed from a GW17 isolating switch and a method. The method comprises the following steps: carrying out on-site investigation on an original GW17 isolating switch equipment body, and determining key points in equipment transformation; changing the design structure by investigating the transformed isolating switch on site and looking up blueprint data to enable the size of the GW17 isolating switch to be consistent with that of an isolating switch after on-site application and transformation; realizing utilization of a used mechanism and utilization of a used static side insulator according to the state of the transformed isolating switch; checking the reduction in on-site power failure time and on-site engineering quantity compared with the replacement of a whole group of isolating switches; transformingthe original isolating switch on site; and carrying out field test and assessment on the parameters of the transformed isolating switch. Serious problems of the GW17 isolating switch after long-timeoperation in severe cold and windy and dusty areas are eliminated, the on-site power failure time is shortened, the workload is reduced, the construction cost and cost are lowered, and safe and stableoperation of power grid equipment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of on-site technical transformation and state maintenance of high-voltage isolating switches, in particular to a GW17-type isolating switch transformed into a GW7-type isolating switch and a method thereof, in particular to a technical transformation method and on-site equipment maintenance of an AC high-voltage isolating switch technology applications. Background technique [0002] The weather in the northern region is cold, with large temperature differences between day and night and four seasons, and severe weather conditions such as wind, sand, rain, snow, and freezing are frequent. In the actual application of the substation, it was found that the GW17 type isolating switch is aging with the increase of the service life. The equipment is stuck in the transmission, the opening and closing are not in place during the operation of the equipment, and the porcelain bottle is broken due to excessive torque du...

AI Technical Summary

Problems solved by technology

Its purpose is to effectively eliminate the transmission jamming, insufficient opening and closing of the GW17 type disconnector after long-term operation in the severe cold and sandy areas of the north, the breakage of the porcelain bottle due to excessive torque during the operation of the knife switch, and the production of parts. Serious problems such as rust and main conductive circuit heating

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