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Method for electrically disconnecting or connecting disconnector with drainage wire between buses

A technology of isolating switches and drain wires, applied in the direction of overhead lines/cable equipment, etc., can solve problems such as misoperation accidents, complicated procedures, and increased safety risks of operating personnel, so as to ensure safe operation, ensure reliability, eliminate defects or hidden effect

Inactive Publication Date: 2012-12-26
ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +1
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AI Technical Summary

Problems solved by technology

[0003] Substations usually use double-bus wiring. When repairing 66kV isolating switches, substation operators can only use the method of inverting the bus to switch the power load to another bus or send it by bypass. Due to the need to do dozens to hundreds of operations, The program is complex, prone to misuse accidents, increasing the chance of safety risks for operating personnel

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  • Method for electrically disconnecting or connecting disconnector with drainage wire between buses
  • Method for electrically disconnecting or connecting disconnector with drainage wire between buses

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Embodiment Construction

[0029] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0030] The method of disconnecting and connecting the isolating switch to the drain line between the busbars in the present invention is that the equipotential electrician 1 lifts the insulating hanging ladder 11 to the busbar 4, adopts the equipotential method to work, and the ground personnel 7 use the arc-extinguishing tackle 2 and the drain line The traction rope 3 and the insulating support rod 8 realize the disconnection and connection of the drain wire 5, which specifically includes a live disconnection step and a live connection step, wherein:

[0031] one sight figure 1 , the steps of live disconnection are as follows:

[0032] 1) The equipotential electrician 1 puts on the shielding suit, assembles the insulating hanging ladder 11 on the ground, and uses an insulation resistance meter to test the insulation tools in sections. The resist...

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Abstract

The invention relates to the electrification maintenance field of a 66kV disconnector, in particular to a method for electrically disconnecting or connecting a disconnector with a drainage wire between buses. The method is characterized in that an equipotential electrician is lifted to a flexible busbar along an insulated hanging ladder, potentials are transmitted in the equipotential method, and people on the floor can realize disconnection and connection of the drainage wire by virtue of arc extinction pulleys and haulage ropes of the drainage wire. The method specifically comprises an electrically disconnection step and an electrically connection step. Compared with the prior art, the method provided by the invention has the beneficial effects that the equipotential electrician adopts the equipotential operating method, and the disconnection and the connection of the drainage wire with electricity can be realized on an aerial flexible bus bar, so that defects or hidden dangers can be eliminated, operating times of power outage and switching of operators can be reduced, reliability of power distribution of a power grid can be ensured, and a safe operation of electrical equipment can be guaranteed.

Description

technical field [0001] The invention relates to the field of live maintenance of a 66kV isolating switch, in particular to a method for disconnecting and connecting the isolating switch to a busbar-to-bus lead-off line. Background technique [0002] Live work refers to a special way of repairing and transforming electrical equipment in operation. It is an effective technical means to ensure the safe, economical and reliable operation of the power grid and uninterrupted power supply to users. Reduce the workload of personnel and avoid misoperation accidents. [0003] Substations usually use double-bus wiring. When repairing 66kV isolating switches, substation operators can only use the method of inverting the bus to switch the power load to another bus or send it by bypass. Due to the need to do dozens to hundreds of operations, The program is complex, prone to misuse accidents, and increases the chance of safety risks for operating personnel. [0004] Adopting the method o...

Claims

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Application Information

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IPC IPC(8): H02G1/02
Inventor 王枫刘伟丁涛何忠伟战宝华赵岩刘君于潇杜明亮张建王晓东
Owner ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY
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