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Relay test method based on virtual instrument

A relay testing and virtual instrument technology, applied in circuit breaker testing, instruments, measuring electricity, etc., can solve the problems of protection refusal and malfunction, achieve a high level of automation, improve the rate of incoming inspection and material screening, and detection speed quick effect

Inactive Publication Date: 2016-11-16
NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the parameters such as starting time, starting voltage, shut-off time, and shut-off voltage of the relay used do not meet the requirements, it may lead to protection refusal and malfunction

Method used

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  • Relay test method based on virtual instrument
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  • Relay test method based on virtual instrument

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0033] Such as figure 1 As shown, the relay testing method based on virtual instrument of the present invention includes the following steps:

[0034] Step (1), put the relay to be tested into the test fixture according to the number. The test fixture can accommodate up to 12 relays for testing. After each relay is tested, the fixture will switch to the next relay in order until it is completed.

[0035] Step (2), according to the halving logic, according to figure 2 The process is to test the starting voltage of the relay. The test process is as follows:

[0036] (2-1) Adopt digital input and output module and oscilloscope, the two channels of oscilloscope respectively receive the main coil and cont...

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Abstract

The invention discloses a relay test method based on a virtual instrument. A DC power supply is applied to supply power to a relay. Existing high-speed data acquisition equipment is applied to perform data acquisition, and logic control is performed through autonomous programming. According to the test method, operation voltage and time and return voltage and time of the relay can be detected, and detection speed is high, the degree of automation is high and the relay can be repeatedly tested so that the test method is suitable for receiving inspection and material selection, great in application prospect and worthy of popularization.

Description

Technical field [0001] The invention relates to a relay testing method based on virtual instruments, belonging to the technical field of relay testing. Background technique [0002] Virtual Instrument technology (Virtual Instrument) uses modular hardware, combined with efficient and flexible software to complete various testing, measurement and automation applications. The virtual instrument separates data acquisition from data analysis. The result of the data acquisition board is delivered to the software through the high-speed communication bus, and the instrument function is realized by the software. The virtual instrument platform can be flexibly and effectively applied to various data acquisition and parameter testing. [0003] With the development of relay protection technology and the continuous progress of manufacturing technology, electrical components are gradually developing in the direction of miniaturization and integration, and it is difficult to debug the relays use...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/3278
Inventor 周兆庆曹玉保吴凯
Owner NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD
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