Automatic inspection and maintenance of dropout fuses in power failure

Abstract

The invention discloses a drop-out type fuse capable of automatic maintenance in power failure, belonging to the power supply system technology field. The drop-out type fuse capable of automatic maintenance in power failure comprises a drop-out type fuse and a power failure maintenance system; the drop-out type fuse comprises an installation support, a porcelain member and a fuse tube; the upper end of the porcelain member is fixedly connected to an upper cover groove; the lower end of the porcelain member is fixedly connected to a lower support seat; the upper end of the fuse tube is provided with a guiding hook, an upper contact and an operation ring; the upper contact is movably connected to the upper cover groove; the lower end of the fuse tube has a lower contact adaptable with a lower support seat; a power failure maintenance system is installed on the installation support of the drop-out type fuse; the power failure maintenance system starts detecting when the fusing body of the drop-out fuse is in outage for detecting pressure received by the upper contact and the lower contact of the drop-out fuse and detecting the looseness of the fusing body. The drop-out type fuse capable of automatic maintenance in power failure is capable of automatic maintenance, fast and convenient, and time-saving and labor saving. Besides, the drop-out type fuse can automatically transmit the detection result to the communication tool of the maintenance staff and solves the problems that the people has to check the drop-out type fuse one by one in a power failure maintenance, which is time-and-labor-consuming and has heavy workload.

Description

technical field [0001] The invention belongs to the technical field of power supply systems, and relates to the direction of high-voltage protection appliances, in particular to a drop-out fuse for automatic maintenance during power failure. Background technique [0002] With the progress of insulation of overhead distribution lines, the power sector has increasingly urgent requirements for the full insulation of dropout fuses used in a large number of lines. The fully insulated high-voltage drop-out current-limiting fuse realizes the overall sealing and insulation of the product, that is, the contact between the product and any external object will not cause conduction or short circuit, thus greatly improving the safety of line operation. [0003] The drop-out fuse is installed on the branch line of the 10kV distribution line, which can reduce the scope of power outage, because it has an obvious disconnection point of the high-voltage drop-out fuse, which has the function o...

AI Technical Summary

Problems solved by technology

However, during the spring inspection and power outage maintenance, it is necessary to do a lot of inspection work on the fuse: whether the rotating part of the fuse is flexible, whether there is corrosion, rotation failure and other abnormalities; whether the static and moving contacts are consistent, tight and intact, and whether there are burn marks; Whether the melt has become slack or weak; in this way, the workload of the maintenance personnel is relatively large, and it is not easy to locate the problem of finding the drop-out fuse

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