Device for testing characteristics of breaker opening and closing coils

A technology for testing the characteristics of opening and closing coils, applied in the direction of circuit breaker testing, testing dielectric strength, etc., can solve the problems of lack of quality evaluation of opening and closing coils, improve accuracy and anti-interference ability, and ensure accuracy , Comprehensive effect of detection data

Active Publication Date: 2013-12-18
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In addition, according to statistics, 50% of circuit breaker failures are caused by failure of opening and closing coils.
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Method used

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  • Device for testing characteristics of breaker opening and closing coils
  • Device for testing characteristics of breaker opening and closing coils
  • Device for testing characteristics of breaker opening and closing coils

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[0031] The present invention will be further described below in conjunction with the drawings and embodiments.

[0032] Such as figure 1 As shown, the circuit breaker opening and closing coil characteristic test device of the present invention is provided with a coil resistance test unit, a coil insulation and a number of turns test unit, which are controlled by a controller.

[0033] Among them, the controller is used for real-time monitoring of the circuit breaker opening and closing coil data for fault diagnosis of the coil resistance test unit, coil insulation and turns test unit, and realizes real-time monitoring of the circuit breaker opening and closing coil; the coil resistance test unit is used for Receive the resistance test signal sent by the controller, and the control unit collects the resistance of the circuit breaker opening and closing coil, and transmits the data to the controller; the coil insulation and turns test unit is used to receive the insulation strength a...

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Abstract

The invention discloses a device for testing the characteristics of breaker opening and closing coils. The device comprises a controller, a coil resistance testing unit and a coil insulation and number-of-turns testing unit. The controller is respectively connected with a signal source, the coil resistance testing unit and the coil insulation and number-of-turns testing unit, the coil resistance testing unit and the coil insulation and number-of-turns testing unit perform testing through a coil to be tested, tested data are sent to the controller, the controller performs fault diagnosis on the breaker opening and closing coils in real time, and therefore real-time monitoring of the breaker opening and closing coils is realized. According to the device, the performance and the quality of the coils are estimated through testing of the characteristics of the coils, quality defects and fault hidden dangers are eliminated, the reliability and the stability of products in use are guaranteed, and the operation safety of a power system is improved.

Description

technical field [0001] The invention discloses a circuit breaker opening and closing coil characteristic test and fault diagnosis technology, including the opening and closing coil steady-state characteristic test, the opening and closing coil transient characteristic test, the opening and closing coil insulation characteristic test, the opening and closing coil Thermal stability test and opening and closing coil expert diagnosis system. Background technique [0002] High-voltage switch is the most critical electrical equipment in the power system, especially the number of high-voltage circuit breakers is large, the amount of maintenance is large, and the cost is high. Its reliability directly affects the grid security of the power system. Relevant data show that more than half of substation maintenance costs are spent on high-voltage circuit breakers, and 60% of them are used for minor repairs and routine maintenance of circuit breakers. In addition, according to statisti...

Claims

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Application Information

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IPC IPC(8): G01R31/327G01R31/12
Inventor 李义仓李石吕新良李程王森郭磊程兴胜黎斌胡义军李小军
Owner STATE GRID CORP OF CHINA
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