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Intelligent miniature circuit breaker driving capability test method and device

A miniature circuit breaker and driving capability technology, which is applied in the field of intelligent miniature circuit breaker driving capability test methods and devices, can solve problems such as circuit breaker testing and multiple faults, and achieve the effects of improving reliability, ensuring driving capability, and being easy to implement

Active Publication Date: 2017-12-08
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 capability test method and device
  • Intelligent miniature circuit breaker driving capability test method and device

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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] Such as 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 ...

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PUM

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Abstract

The invention discloses an intelligent miniature circuit breaker driving capability test method, which comprises the steps: S01) applying 150-200% of rated voltage to a control end and a phase line end of a circuit breaker, and giving an opening / closing signal every an interval; after time is over, recovering the control end and the phase line end to a normal voltage, and if the circuit breaker can open or close normally, entering the step S02); S02) changing the voltage applied to the control end and a phase line end, and giving an opening / closing signal every an interval, and if the circuit breaker can open or close normally, entering the step S03); and S03) applying a rated working voltage to the phase line end, and applying different grades of voltage to the control end, and if the circuit breaker can open or close normally, judging that the circuit breaker is qualified. The invention also discloses a test device, which comprises a voltage regulation unit and an action control unit. The output end of the voltage regulation unit is connected with the input end of the phase line end and the action control unit of a circuit breaker to be tested; and the output end of the action control unit is connected with the control end of the circuit breaker to be tested. The test method and device have the advantages of comprehensive test and high reliability and the like.

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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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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