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Complete device for gas test of SF6 circuit breaker

A complete set of equipment and circuit breaker technology, which is applied in the direction of circuit breaker testing, measuring devices, instruments, etc., can solve the problem that the gas test cannot be tested with electricity, and achieve the effect of reducing power failure operations

Pending Publication Date: 2019-02-05
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the partial circuit breaker SF described in the above-mentioned prior art 6 Gas test can not test the defects of electrification, provide a kind of SF 6 Circuit breaker gas test complete set

Method used

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  • Complete device for gas test of SF6 circuit breaker
  • Complete device for gas test of SF6 circuit breaker

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Embodiment Construction

[0019] The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

[0020] In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0021] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] This embodiment provides a SF 6 Circuit breaker gas test kit.

[0024] like Figure 1~2 As shown, the device includes: a gas cylinder 1, a three-way valve 3, a tester 4 and a joint 5;

[0025] The three-way valve 3 contains three passages: a first passage 301, a second passage 302 and a third passage 303;

[0026] The outlet of the gas cylinder 1 is connected with the first passage ...

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PUM

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Abstract

The invention relates to a complete device for a gas test of an SF6 circuit breaker. The device comprises a gas cylinder, a pressure reducing valve, a three-way valve, a tester, and a joint. The three-way valve comprises three channels of a first channel, a second channel, and a third channel. The outlet of the gas cylinder is connected with one end of the pressure reducing valve through a gas pipe. The other end of the pressure reducing valve is connected with the first channel. The tester is connected with the third channel through a gas pipe. The second channel is connected with the joint through a gas pipe. The three-way valve is of a structure without a check valve, and the joint is a joint without a check valve. During the implementation, a switch of the gas cylinder and switches ofthe three channels of the three-way valve are sequentially opened, the joint without the check valve is connected and locked with a gas taking valve of the circuit breaker, and a flow switch of the tester is opened, so that the gas test work can be started. The complete device for the gas test of the SF6 circuit breaker can realize the gas live test of the circuit breaker, so that the test work can be more flexibly scheduled, the power failure operations of the operators are reduced, the test working efficiency is improved, and meanwhile the workload of the device operators is reduced.

Description

technical field [0001] The invention relates to the field of chemical testing of electrical equipment, more specifically, to a SF 6 Circuit breaker gas test kit. Background technique [0002] Currently, high-pressure sulfur hexafluoride (SF 6 ) The on-site gas test of the circuit breaker has basically realized the live test, but there are still some models of SF 6 Circuit breakers can only be tested with power failure due to inherent defects in structural design, such as HGF311 SF 6 Circuit breaker; HGF311 type SF 6 The sensor of the gas pressure relay of the circuit breaker is located in the air chamber of the air intake valve, and the connection channel between the air chamber of the air intake valve and the air chamber of the circuit breaker body is narrow. The pressure in the air chamber drops for a short time, and the sensor of the pressure relay collects a low air pressure signal, SF 6 Low air pressure blocking action, protection control circuit disconnection, pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01L11/00G01R31/327
CPCG01L11/00G01N33/0036G01R31/3275
Inventor 谭劲章刘志陆韦映轲陈俊威黄伟东张伟忠黄绪煜黎小龙石俏杨钧豪任胜华彭琪淇施苏宸黄艳桃黄腾鲲
Owner GUANGDONG POWER GRID CO LTD
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