Exhaust device for gas relay of transformer

A technology for exhaust devices and relays, applied in switch devices, electrical components, etc., can solve problems such as inability to be operated by operation and maintenance personnel, malfunction of gas relays, electric shock accidents of personnel, etc., to improve work efficiency and operation and maintenance. Timeliness and the effect of avoiding the malfunction of the Buchholz relay

Inactive Publication Date: 2016-12-07
DALIAN POWER SUPPLY COMPANY STATE GRID LIAONING ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Power outage operation makes the transformer under load out of operation, which reduces the reliability of power supply during operation; live operation has hidden dangers, which may easily cause electric shock accidents for personnel, and frequent deflation may easily cause loose sealing device components and oil leakage, resulting in misoperation of gas relays and many more
In addition, this kind of electrified gas discharge operation cannot be operated by operation and maintenance personnel according to regulations. When operation and maintenance personnel find that it is necessary to perform gas discharge operations, they must report to the maintenance department for maintenance, and special maintenance personnel will work on the spot

Method used

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  • Exhaust device for gas relay of transformer
  • Exhaust device for gas relay of transformer

Examples

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing for further explanation:

[0012] Such as figure 1 , 2 As shown, the present invention is composed of a front end connector 1 , an exhaust pipe 2 , an exhaust valve 3 and a sealing support 4 . The front-end connector is arranged on the front end of the exhaust pipe, and the front-end connector of the present embodiment is a connecting nut whose internal thread matches the external thread of the exhaust nozzle 14 of the gas relay 6 . A sealing ring 5 is arranged between the exhaust nozzle of the gas relay and the connecting nut, and a sealing connection is also between the front end connector and the exhaust pipe.

[0013] The exhaust valve is arranged at the end of the exhaust pipe, and it is sealedly connected with the exhaust pipe.

[0014] The sealing support is sleeved on the exhaust pipe. The sealing support in this embodiment is a bolt sleeved on the exhaust pipe. The external thread of the bolt matches the interna...

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PUM

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Abstract

The invention relates to an exhaust device for a gas relay of a transformer. The exhaust device comprises a front-end connection element, an exhaust pipe, an exhaust valve and a sealing support element, wherein the front-end connection element is arranged at a front end of the exhaust pipe and is provided with an interface which can be connected with an exhaust nozzle of the gas relay, the exhaust valve is arranged at a tail end of the exhaust pipe, and the sealing support element sleeves the exhaust pipe and passes through a side wall of the gas relay. The exhaust device is arranged on an existing gas relay of the transformer, exhaust operation is not needed to be frequently operated on the gas relay, so that a maintainer is unnecessary to climb for operation, and meanwhile, the misoperation of the gas relay caused by oil leakage since a sealing component of the exhaust nozzle of the gas relay is loosen can also be prevented.

Description

technical field [0001] The invention relates to auxiliary equipment for transformer maintenance, in particular to an exhaust device for a transformer gas relay. Background technique [0002] At present, due to the need for power grid maintenance, the frequency of on-load voltage regulation operations for main transformers in the power grid is very intensive. The arc generated by the frequent action of the on-load tap changer causes the transformer oil to vaporize, causing gas to be generated inside the mechanism, resulting in gas accumulation at the upper end of the on-load gas relay of the main transformer. Therefore, it is necessary to ventilate and exhaust the gas relay. There are two main ways of ventilation and exhaust at present: one is power-off operation, and the other is electrified operation. Power outage operation makes the transformer under load out of operation, which reduces the reliability of power supply during operation; live operation has hidden dangers, w...

Claims

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Application Information

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IPC IPC(8): H02B3/00
CPCH02B3/00
Inventor 吕颜刚迟福有李保军吕波王丽葛恒序李国华
Owner DALIAN POWER SUPPLY COMPANY STATE GRID LIAONING ELECTRIC POWER
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