Method for improving closing rebound processing efficiency

A closing bounce and efficiency technology, applied in high-voltage air circuit breakers, high-voltage/high-current switches, electrical components, etc., can solve problems such as excessive test data, and achieve the effect of improving the efficiency of closing bounces

Inactive Publication Date: 2010-11-17
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] When testing the characteristics of the vacuum circuit breaker, it was found that some test data exceeded the standard. Among them, the closing bounce data accounted for the first place in the number of exceeding the standard. How to improve the efficiency of closing bounce is the inventor of the application. question

Method used

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Embodiment Construction

[0007] The present invention will be further described below.

[0008] A method for improving the closing bounce efficiency of the present invention includes a vacuum circuit breaker, the vacuum circuit breaker contains bolts, and the tightening torque of the bolts is adjusted to adjust the pressure of the contact surface. The adjustment range of the tightening torque of the bolts is 8.8 to 10.8N.m or 17.7~22.6N.m or 31.49~39.2N.m or 51.0~60.8N.m or 78.5~127.4N.m.

[0009] In actual situations, the contact pressure can be adjusted by tightening each contact surface, but specific problems need to be analyzed in detail, especially when the expansion coefficients of the fastening bolts and fasteners are different, excessive tightening increases the contact pressure will also play a role. reaction. For example, if the bolts are tightened too tightly and the contact pressure is too large, the part of the bus bar under the gasket will be compressed, and the cross-section of the bus...

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Abstract

The invention discloses a method for closing rebound processing efficiency. In the method, a vacuum breaker with a bolt is used, the pressure on a contact face is regulated by regulating the fastening moment of the bolt, and the regulation range of the fastening moment of the bolt ranges from 8.8 to 10.8N.m or from 17.7 to 22.6N.m or from 31.49 to 39.2N.m or from 51.0 to 60.8N.m or from 78.5 to 127.4N.m. The method for closing rebound processing efficiency can improve closing rebound processing efficiency by regulating contact pressure.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a method for improving the efficiency of closing bounce. technical background [0002] Vacuum circuit breaker is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small size, light weight, suitable for frequent operation, and no maintenance for arc extinguishing. The application is more popular. [0003] When testing the characteristics of the vacuum circuit breaker, it was found that some test data exceeded the standard. Among them, the closing bounce data accounted for the first place in the number of exceeding the standard. How to improve the efficiency of closing bounce is the inventor of the application. question. Contents of the invention [0004] The purpose of the present invention is to overcome the defects of the prior art and provide a method for improving the efficiency of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/664
Inventor 荀秀忠
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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