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A handheld time relay action time tester and method

A technology of time relay and action time, which is applied in the direction of circuit breaker testing, etc., can solve the problems of time-consuming and laborious, frequent transmission, and three-phase difference of the switch body, and achieve the effect of small size, small size, time and manpower

Active Publication Date: 2018-03-09
EXTRA HIGH VOLTAGE POWER TRANSMISSION NANJING OF CHINA SOUTHERN POWER GRID
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a portable and hand-held time relay action time tester to solve the problem of frequent transmission, time-consuming and labor-intensive testing of the three-phase inconsistency of the switch body.

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  • A handheld time relay action time tester and method
  • A handheld time relay action time tester and method

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Embodiment Construction

[0020] The invention aims to protect a portable, hand-held time relay action time testing instrument, which solves the problem of frequent transmission, time-consuming and labor-intensive testing of the three-phase inconsistency of the switch body. The tester of the invention is easy to operate, fast in test speed, accurate in test results, intuitive and convenient to adjust the time relay, and saves time and manpower.

[0021] A hand-held time relay operating time tester, comprising a hand-held tester host, on which a liquid crystal display, a contact detection terminal, a voltage output terminal, a power switch, and a test switch are arranged, and a control panel is arranged inside the host; The control board is provided with a single-chip microcomputer, a boost circuit, a voltage detection module and a contact detection module; the single-chip microcomputer is respectively connected to the boost circuit, the voltage detection module, and the contact detection module, and the...

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Abstract

The invention discloses a hand-held time relay operating time tester and a method, and relates to the technical field of relay testing. The instrument includes a handheld tester host, which is provided with a liquid crystal display, a contact detection terminal, a voltage output terminal, a power switch, a test switch, and a control panel inside the host; the control panel is provided with a single-chip microcomputer, A boost circuit, a voltage detection module and a contact detection module; the single-chip microcomputer is respectively connected to the boost circuit, the voltage detection module, and the contact detection module, and the boost circuit is also connected to the voltage detection module; The boost circuit is connected to the voltage output terminal, the contact detection module is connected to the contact detection terminal, and the single-chip microcomputer is connected to the test switch and the liquid crystal display. The tester of the invention is easy to operate, fast in test speed, accurate in test results, intuitive and convenient to adjust the time relay, and saves time and manpower.

Description

technical field [0001] The invention relates to the technical field of relay testing, in particular to a hand-held three-phase inconsistency time relay operating time tester and a method thereof. Background technique [0002] In the power industry, testing the three-phase inconsistency time relay of high-voltage circuit breakers in combination with equipment power outages is a key project that must be completed regularly. At present, the test of the action time of the three-phase inconsistent relay of the high-voltage circuit breaker is to trip one phase of the circuit breaker through the actual transmission method. After the three-phase inconsistent relay delays, the other two phases are jumped. The displacement time of the auxiliary contact of the circuit breaker in the device indirectly calculates the action time of the three-phase inconsistency time relay. If the action time does not meet the requirements, you need to adjust the action time of the time relay in the circ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
Inventor 廖华苏晓贾筱莹朱伟柳明姜宪彬何山李黄河李锐邓朝翥
Owner EXTRA HIGH VOLTAGE POWER TRANSMISSION NANJING OF CHINA SOUTHERN POWER GRID
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