Maintenance tool method for replacing hoop of ALSTOM isolating switch without power failure

Abstract

The invention discloses a maintenance tool and method for replacing a hoop of an ALSTOM isolating switch without power failure. The tool comprises a transition plate, an upper-end clamp and a lower-end clamp; the transition plate is provided with a hoop replacement window; a hoop replacement window is used for dismounting a hoop to be replaced and mounting a new hoop; the transition plate is fixedly connected with the upper end clamp at the upper end of the hoop replacement window, the upper end clamp is clamped on a vertical connecting rod at the upper end of the disconnecting link mechanism,the transition plate is fixedly connected with the lower end clamp at the lower end of the hoop replacement window, and the lower end clamp and the disconnecting link mechanism are clamped on the output shaft. According to the invention, the hoop can be replaced under the running state of equipment, the power failure cost is saved, and huge economic benefits are generated; under the condition that normal running of the equipment is guaranteed, the completion time of replacement work is greatly shortened, huge labor cost is saved, and the hoop with the adjustable diameter is adopted to cope with vertical connecting rods with different pipe diameters.

Description

technical field [0001] The present invention relates to the field of electric network maintenance, more specifically, relate to a kind of maintenance tool and maintenance method of ALSTOM isolating switch without power failure replacement hoop. Background technique [0002] At present, the output shaft of the operating mechanism and the vertical transmission link of the outdoor high-voltage isolating switch commonly used in substations are connected by a hoop. The torque output by the mechanism acts on the hoop for a long time, because the traditional hoop is only through the locking pressure of the bolt. Hold the connecting rod tightly, and under the action of high torque in forward and reverse rotation for a long time, it is easy to slip and move, which will cause the hidden danger of the knife switch not opening and closing in place. To solve this kind of hidden danger, you can drill a hole in the hoop and add a center pin (locating bolt) to lock the connection between th...

AI Technical Summary

Problems solved by technology

[0003] In the anti-accident measures of the power grid, it is proposed that the replacement of the prefabricated new hoops needs to be completed in conjunction with power outage maintenance. However, the stock of isolating switches in operation is huge, and the operation of the power grid is realistic. It is impossible to replace the hoops in a short period of time, and some even cannot be powered off. Replacement, complete the task of anti-accident measures in no time

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