Live insulator replacement method and load transfer device

A live replacement, insulator technology, applied in the direction of overhead lines/cable equipment, etc., can solve the problem of unsafe replacement of insulators when live
CN107069562BActive Publication Date: 2019-03-08QUJING POWER SUPPLY BUREAU YUNNAN POWER GRID CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QUJING POWER SUPPLY BUREAU YUNNAN POWER GRID CO LTD
Publication Date
2019-03-08

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Abstract

The invention relates to the technical field of electric power maintenance and relates to a live-line insulator replacement method and a load transfer device. The method comprises: a first operator on a cross arm of a tower body pushes an insulator stabilizing support to an insulator hanging point along the upper surface of the cross arm and adjusts the position of the device; a second operator installs two lifting pulleys connected with insulated ropes and wire hooks into a pulley groove of a pulley flip clamp by means of an operating lever, hooks wires with the wire hooks, and pulls the wires to transfer the tension force to a lifting device; an insulator lifting device is lifted, and a pin connecting an insulating string with a bulb hanging ring is taken out; the second operator moves the insulator string on the insulator lifting device to a side of the tower body along a clamp bearing support and then transfers old insulators to the ground. The operation safety is improved through the operation method. The load transfer device comprises an insulator stabilizing support, a clamp bearing support and a dismounting device. The load transfer device has the above advantages compared with the prior art.
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Description

technical field

[0001] The invention relates to the technical field of electric power maintenance, in particular to a method for replacing an insulator while live and a load transfer device. Background technique

[0002] At present, most of the 35kV linear insulators are replaced by the ground potential method. There are two kinds of tools used. One is to replace with an insulating pulley block. The advantage of using an insulating pulley block is that it is flexible and convenient to operate. The disadvantage is that the metal part of the pulley block is too long. will occupy the air gap distance. The other is the cross-arm special tool. The advantage of the cross-arm special tool is that the fixture is installed on the cross-arm, and the screw rod is higher than the cross-arm, which will not occupy the air gap distance. The disadvantage is that the special fixture is limited by the cross-arm structure. When the two sides of the cross arm are used together, they cannot be ...

Claims

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