Explosion-proof bushing elevating seat

Abstract

The application discloses an explosion-proof bushing elevating seat, comprising a bushing elevating seat body, a metal mesh cover and at least one pressure release valve, wherein the bushing elevatingseat body is provided with at least one of the pressure release valves. The pressure release valves may release the pressure inside the bushing elevating seat body when a failure happens in the bushing elevating seat body to protect the bushing elevating seat body from damage, and the metal mesh cover is covered outside the bushing elevating seat body to avoid that the manual control cover and other components on the bushing elevating seat body fly out when a failure happens to cause secondary disasters. At the same time, the failure may be positioned according to the action sequence of the pressure release valve.

Description

technical field [0001] The present application relates to the field of transformers, in particular to an explosion-proof bushing raising seat. Background technique [0002] The transformer is the key equipment in the power grid, and its high-voltage bushing riser is mostly designed with "L" shape. The bushing riser is different from the oil tank of the transformer body. It is rolled and welded by steel plate. It is not designed with reinforcement ribs or special reinforcement anti-explosion measures. It is a weak part of the explosion-proof of the transformer oil tank. [0003] At present, the transformer factory only designs and installs the pressure relief valve on the top of the oil tank of the transformer body. The pressure release valve of the oil tank of the transformer body is far away from the rising seat of the bushing, and the response is slow, so it cannot play an effective explosion-proof protection role. [0004] When the power grid fails, due to the internal ...

AI Technical Summary

Problems solved by technology

The pressure release valve of the oil tank of the transformer body is far away from the rising seat of the bushing, and the response is slow, so it cannot play an effective explosion-proof protection role.

[0004] When the power grid fails, due to the internal arcing of the casing rising seat, the oil accelerates to decompose, and a large amount of gas is generated, which causes the internal pressure of the casing rising seat to increase sharply, which leads to a series of serious secondary disasters: First, the casing rising seat and the The bolts of the oil tank of the transformer body are all brittl

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