Intelligent miniature circuit breaker driving ability test method and device

A technology of miniature circuit breaker and driving capability, applied in the field of driving capability test method and device of intelligent miniature circuit breaker, can solve problems such as multiple faults, circuit breaker test, etc., and achieve the effects of ensuring driving capability, improving reliability and high reliability

Active Publication Date: 2020-11-10
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the circuit breaker directly controls the power-off and closing of the user, higher requirements are put forward for its reliability. failure

Method used

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  • Intelligent miniature circuit breaker driving ability test method and device
  • Intelligent miniature circuit breaker driving ability test method and device

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Experimental program
Comparison scheme
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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] like figure 1 As shown, the intelligent miniature circuit breaker driving capability test method of the present embodiment, the steps are:

[0027] S01. Apply 150 to 200% of the rated voltage at the control terminal and phase line terminal of the circuit breaker and keep it for a preset time. Within the preset time, give a remote opening and closing control action signal at regular intervals; when the preset time ends After that, the control terminal and phase terminal of the circuit breaker return to normal voltage. If the circuit breaker can be opened and closed normally, enter the next step, otherwise it is unqualified;

[0028] S02. Change the voltage applied to the control terminal and phase terminal of the circuit breaker, and give a remote opening and closing control action signal every once in a while. If the circuit breaker can...

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PUM

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Abstract

The invention discloses a driving ability test method of an intelligent miniature circuit breaker. The steps are: S01. Apply 150 to 200% of the rated voltage to the control terminal and the phase line terminal of the circuit breaker, and intermittently give opening and closing signals; after the end, the control terminal Return to the normal voltage at the terminal and phase line, if the switch can be opened and closed normally, enter S02; S02, change the voltage applied to the control terminal and the phase line terminal, and give the opening and closing signal at intervals, if the switch is normally opened and closed, enter S03; S03. Apply the rated working voltage to the phase line terminal, and apply different levels of voltage to the control terminal. If the switch can be opened and closed normally, it is judged qualified. The invention also discloses a test device, which includes a voltage regulating unit and an action control unit, the output end of the voltage regulating unit is connected with the phase line end of the circuit breaker to be tested and the input end of the action control unit, and the output end of the action control unit is connected with the The control terminals of the circuit breaker to be tested are connected. Both the test method and the device of the invention have the advantages of comprehensive testing and high reliability.

Description

technical field [0001] The invention mainly relates to the technical field of intelligent miniature circuit breaker testing, in particular to a method and device for testing the driving capability of an intelligent miniature circuit breaker. Background technique [0002] With the development of national economy and technology and the improvement of people's living standards, electric energy has become one of the indispensable energy sources in people's production and life. As the only tool in the power system to measure the electric energy used by users, the importance of the electric energy meter is self-evident. [0003] At the same time, due to the development of today's intelligent and unmanned technology, smart energy meters with remote power-off and switch-on functions have become mainstream energy meters in today's power systems. This type of energy meter generally has an external circuit breaker, and the controller of the energy meter controls the opening and closin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
CPCG01R31/327G01R31/3277
Inventor 熊德智陈向群李劲柏胡军华吴志勇
Owner STATE GRID HUNAN ELECTRIC POWER
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