A high voltage load switch

Abstract

The invention discloses a high-voltage load switch, and relates to the technical field of the power transformation equipment. The high-voltage load switch comprises a manipulation part and an electric, wherein the manipulation part comprises an operation handle; an insulating shell is arranged in a transformer tank body; an electric part is arranged in an insulating shell; a stirring shaft is further arranged in the insulating shell; one end of the stirring shaft extends out of the insulating shell and is connected with an operation handle through a spring; oil holes are respectively formed at the top and the bottom of the insulating shell; a first temperature control switch and a second temperature control switch are respectively arranged at the oil holes; multilayer partitions are arranged in the transformer tank body; a circulating hole is formed on each partition, and one of the partitions is connected with the insulating shell; at least one layer partition is arranged below the insulating shell; and a carbon deposition slot is arranged in the transformer tank body. The high-voltage load switch has the following advantages that the hot oil with free carbon in the insulating shell is discharged and replaced by the clean insulating oil, the replacement effect is good; the insulating oil in each of the transformer tank body and the insulating shell has good insulating property.

Description

technical field [0001] The invention relates to the technical field of power transformation equipment, in particular to a high-voltage load switch. Background technique [0002] High-voltage load switches are widely used in various substation equipment. The arc generated by the high-voltage load switch of oil-immersed transformers at the moment of breaking and closing brings high temperature and high pressure. During the arc burning and arc extinguishing process, free carbon impurities are generated and damage the insulating oil. insulation. CN2499961 discloses a four-station sealed load switch. The electrical part of the load switch is connected to an oil inlet pipe and an oil discharge pipe on the sealing device, and the freshness and decompression of the insulating oil in the switch sealing device are guaranteed through the oil inlet and oil discharge. However, This method causes the insulating oil in the switch sealing device and the insulating oil in the transformer bo...

AI Technical Summary

Problems solved by technology

CN2499961 discloses a four-station sealed load switch. The electrical part of the load switch is connected to an oil inlet pipe and an oil discharge pipe on the sealing device, and the freshness and decompression of the insulating oil in the switch sealing device are guaranteed through the oil inlet and oil discharge. However, This method causes the insulating oil in the switch sealing device and the insulating oil in the transformer box to be unable to circulate, and it is necessary to add fresh insulating oil to supplement the insulating oil released from the oil discharge pipe. In practical applications, the staff must carry the insulating oil with them and dispose of it. The released "old oil" is firstly inconvenient and secondly causes waste

CN102938291 discloses a water removal equipment for electric oil-immersed transformers. The moisture in the insulating oil is detected by a moisture detector, and the microprocessor controls the work of the vacuum dehydration device to achieve the purpose of water removal. But in fact, the main water produced in the insulating oil is It is a carbonized conductive medium, and this method can only remove water, which may not be practical

CN102930954 discloses a method for removing impurities in electric power oil-immersed transformers. A particle concentration sensor is used to detect whether the particle concentration in the box exceeds the threshold. If the particle concentration exceeds the threshold, an electrostatic particle purification device is called to purify the particles. The method described in this patent is complicated and applicable Insufficient performance, no specific hardware and data description

CN102914625 discloses an air concentration detection system of a power oil-immersed transformer, which is basically the same as CN102930954 in principle, and its shortcomings are also obvious

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