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Non-contact type 10kV vacuum circuit breaker vacuum degree test apparatus

A vacuum circuit breaker, non-contact technology, applied in the field of monitoring, can solve the problem that the vacuum degree of the circuit breaker cannot be monitored online.

Inactive Publication Date: 2016-03-16
SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the technical problem to be solved in this application is to provide a vacuum circuit breaker insulation performance evaluation device to solve the defect that the circuit breaker vacuum degree detection method in the prior art cannot monitor the vacuum degree of the circuit breaker online

Method used

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  • Non-contact type 10kV vacuum circuit breaker vacuum degree test apparatus
  • Non-contact type 10kV vacuum circuit breaker vacuum degree test apparatus
  • Non-contact type 10kV vacuum circuit breaker vacuum degree test apparatus

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Experimental program
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Effect test

Embodiment approach

[0031] The implementation of the test method: install the coupling capacitance probe 100 within a range of 50-70 mm from the vacuum circuit breaker interrupter, use the coupling capacitance probe 100 to collect the pulse signal changes, and then transmit the pulse signal to the signal processing unit 200 via the optical fiber. After a series of processing in the signal processing unit 200, the three signals are compared through the DSP chip to eliminate the influence of temperature fluctuations on the signals, and then the vacuum degree of the vacuum circuit breaker is judged. When the pulse signal can be received, the vacuum circuit is indicated The vacuum of the device has deteriorated, and the judgment result is transmitted to the on-site display 400 through the signal transmission unit 300 and the result is transmitted to the remote monitoring room through the remote communication interface 500. When the vacuum of the 10kV vacuum circuit breaker deteriorates, the on-site dis...

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Abstract

The invention discloses a non-contact type 10kV vacuum circuit breaker vacuum degree test apparatus. The test apparatus comprises a coupling capacitive probe, a signal processing unit, a signal transmission unit, an on-site display and a remote communication interface; the coupling capacitive probe, the signal processing unit and the signal transmission unit are connected in sequence; and the on-site display and the remote communication interface are mounted on the signal transmission unit. The test apparatus can bear high voltage, high electric field intensity, impact and vibration generated in the operation of the circuit breaker, and the environment temperature under the temperature rising conditions in operation; meanwhile, the installation of the coupling capacitive probe does not affect each performance index of the vacuum circuit breaker; the test apparatus can correctly reflect the conditions of the vacuum degree of the vacuum circuit breaker; and the remote communication interface is connected with a monitoring chamber, so that the data information collected and transmitted by the apparatus can be synchronously and vividly displayed.

Description

Technical field [0001] This application belongs to the field of monitoring technology, and specifically relates to a non-contact 10kV vacuum circuit breaker vacuum degree testing device. Background technique [0002] Vacuum high voltage circuit breaker is one of the most important equipment in the power system. It mainly plays the role of control, protection and safety isolation in the power grid. It has good insulation performance, small distance, low arc voltage, low arc energy, and electrical machinery life. It has the advantages of high opening and closing rated breaking current and many times. It is generally used in 10~35kV switch cabinets. Its operation status directly determines the safety and efficiency of the power system. From the perspective of development prospects, vacuum circuit breakers are the most widely used electrical equipment in power systems. Many substations in my country have all adopted vacuum circuit breakers. [0003] At present, the state maintenance i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/668
CPCH01H33/668
Inventor 李文兴徐瑞芃马少辰王惠丽王岩南春雷季安平
Owner SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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