Device for welding fixed three-post insulator of GIL

Abstract

The invention relates to a device for welding a fixed three-post insulator of a GIL. The device comprises a fixing seat coaxially sleeving a central conductor of the GIL, wherein the fixing seat is provided with three jacking parts; when in use, the three jacking parts are capable of stretching and contracting along the radial direction of the central conductor; jacking ends of the three jacking parts are positioned on the same circumference; the circle center of the circumference is positioned on the axis of the fixing seat; the jacking parts are uniformly arranged along the circumference ofthe fixing seat to correspond to supporting posts of the fixed three-post insulator; and the three jacking parts are connected with the same power source to achieve synchronous stretching and contacting. According to the device, synchronous stretching and contracting of the three jacking parts can be achieved by operating the power source conveniently; and a connecting plate fixed on the three supporting posts can be synchronously pressed by the jacking parts in the synchronous stretching process, so that the coaxiality of the center conductor and a cylinder body is guaranteed.

Description

technical field [0001] The invention relates to a GIL fixed three-pillar insulator welding device. Background technique [0002] Gas-insulated metal-enclosed transmission lines (GIL) are used to transmit large-capacity UHV currents. They have the advantages of small footprint, little influence from the natural environment, effective electromagnetic shielding, safe and reliable operation, and long inspection and maintenance cycles. The distance transmission system provides an ideal choice and has been widely used in domestic and foreign power systems. [0003] The GIL pipeline line is composed of many busbar units. A fixed three-post insulator is usually arranged in the busbar unit, and the fixed three-post insulator mainly plays the role of insulation and mechanical support. Such as figure 1 with figure 2 As shown, the fixed three-post insulator 2 is fixed to the central conductor 1 in the bus barrel 6 by crimping, and the particulate trap 5 is loaded from one end of the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fixed three-pillar insulator welding device for GIL, to solve the problems in the prior art that the clamps are inconvenient to operate and it is difficult to ensure the coaxiality of the central conductor in the GIL busbar unit and the busbar barrel

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