Circuit breaker anti-jumping test instrument and method

A circuit breaker and anti-jumping technology, which is applied in the field of power transmission and transformation, can solve problems such as misjudgment of circuit breaker electrical anti-jumping tests, and achieve the effects of reducing interference from human factors, simulating real faults, and reducing damage

Active Publication Date: 2014-12-10
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a circuit breaker anti-jump tester, which solves the problem of misjudgment in the circuit breaker electrical anti-jump test

Method used

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  • Circuit breaker anti-jumping test instrument and method
  • Circuit breaker anti-jumping test instrument and method

Examples

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Embodiment

[0028] Such as figure 1 As shown, the test instrument box integrates a rectifier, a pulse generator and an electronic counter. The rectifier is externally connected to an AC 220V power supply to provide power for the entire device after rectification. The output of the rectifier is connected to the closing output terminal, the relay test terminal, and the pulse generator. And the electronic counter; the pulse generator provides the opening pulse to provide the opening power for the circuit breaker during the test, and the output terminal of the pulse generator is connected to the opening output terminal; the output terminal of the electronic counter is connected to the relay test terminal; the electronic counter is used for reaction prevention For the action of the jump relay, observe whether the anti-jump relay operates through an intuitive counting display to ensure the accuracy and reliability of the test results.

[0029] A power switch is set between the rectifying device...

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Abstract

The invention discloses a circuit breaker anti-jumping test instrument and a circuit breaker anti-jumping test method. The circuit breaker anti-jumping test instrument is characterized in that a rectification device, a pulse generator and an electron counter are integrated in a box body, wherein an external 220V alternation current power source of the rectification device provides electricity to the whole instrument after rectified, the pulse generator provides a switch opening pulse, an output end of the pulse generator is connected with a switch opening output terminal, an output end of the electron counter is connected with a relay test terminal, continuous direct voltage and continuous direct pulse voltage which are output are used to test whether an electric anti-jumping function of a circuit breaker is normal or not, and simultaneously anti-jumping movement situations of the circuit breaker are tested and recorded, and then are comprehensively analyzed and judged by being combined with moving situations of the circuit breaker in a test. Therefore, a traditional test method is changed, various interference factors in the test are eliminated, and test results are accurate and reliable.

Description

technical field [0001] The invention relates to a power system test equipment, in particular to a circuit breaker anti-jump tester and a test method thereof, which are mainly used in the circuit breaker anti-jump test and belong to the technical field of power transmission and transformation. Background technique [0002] The so-called jumping means that the closing circuit has a closing voltage at the output end due to reasons such as manual closing or remote closing contact adhesion. It will be closed again immediately, and the protective action switch will jump off again, because the closing voltage is always applied, and the switch will be closed again. At this time, the switch will repeatedly jump-close. Once the switch jumps, it will cause damage to the switch, and even cause the switch to explode, so the anti-jump function is an essential function of the switch. [0003] In the circuit breaker mechanism, an anti-jump relay is usually installed to realize the electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
Inventor 张赫
Owner STATE GRID CORP OF CHINA
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