A replacement device for live replacement of 110kv GW5 type isolating switch and its application method

Abstract

The invention discloses a replacement device for live replacement of a 110 kV GW5 disconnecting switch and an application method of the replacement device. A running gear is arranged at the bottom of a main support (5), a lifting support (7) is vertically mounted on the main support (5) in a sliding manner, a lifting cylinder (11) is connected between the main support (5) and the lifting support (7), a lifting handle (13) connected with the lifting control oil circuit of the lifting cylinder (11) and a descending pedal (12) connected with the descending control oil circuit of the lifting cylinder (11) are arranged on the main support (5), lifting fixing holes (9) are formed in the upper end of the lifting support (7), and the replacement device further comprises lifting fixing rods (8) connected with the lifting fixing holes (9) and the socket of a base of a 110 kV GW5 isolating switch. The replacement device can run on any rugged terrains, has the advantages of being stable in structure, relatively small in size, convenient to operate, low in control accuracy demand and the like, fills in the blank that no corresponding assembly and disassembly tool is available for live replacement of the 110 kV GW5 disconnecting switch, and thus has a very high engineering application value.

Description

technical field [0001] The invention relates to a replacement device for an isolating switch, in particular to a replacement device for replacing a 110kV GW5 type isolating switch with electricity. The invention also relates to the use method of the replacement device for replacing the 110kV GW5 type isolating switch with electricity. Background technique [0002] With the development of society, the demand for power supply is increasing year by year, and the requirements for power supply reliability are also getting higher and higher. The substation is the central station of power supply, which plays a vital role in ensuring the reliability of power supply, and the primary electrical equipment of our substation is affected by electromechanical load, construction quality, climate and environment for a long time during the power supply process, and there will be differences After detailed understanding, the failure rate of isolating switches in Hunan Province is higher than ...

AI Technical Summary

Problems solved by technology

The substation is the central station of power supply, which plays a vital role in ensuring the reliability of power supply, and the primary electrical equipment of our substation is affected by electromechanical load, construction quality, climate and environment for a long time during the power supply process, and there will be differences After detailed understanding, the failure rate of isolating switches in Hunan Province is higher than that of other primary equipment, and it is prone to overheating of connection points, oxidation and corrosion of operating mechanical parts, resulting in poor contact or insensitive operation, and even more isolating switches. If there is a fault, the above defects directly endanger the normal power supply of our equipment. In the past, we relied on the transfer of loads for power outages for maintenance. When transferring loads, it involves scheduling and the work of multiple teams. The operation is complicated and the maintenance time is too long, which reduces the system. Power supply reliability, even misoperation accidents may occur

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