One-key type test method for optical digital relay protection devices

Abstract

The invention discloses a one-key type test method for optical digital relay protection devices. A test key is started by an operator, and then a digital tester reads information of a tested digital relay protection device through an Ethernet port and generates a test scheme according to IEC61850 communication standards, inspects the quantity of alternating current, voltage, input and output of the protection device, checks protection test items in turn until all test is completed, and automatically generates a test report. The method can really realize one-key type test, reduces requirements for testers, improves test efficiency, and avoids test errors produced because of inappropriate chosen test methods. The method has the advantages of ensuring more intelligent and automatic relay protection test process, shortening outage time, reducing labor intensity and interference of human factors and improving test reliability and accuracy.

Description

technical field [0001] The invention relates to the field of electric power system relay protection, in particular to a method for testing an optical digital relay protection device in a digital substation. Background technique [0002] At present, the number of digital substations is increasing, all kinds of data are digitized from the source, and information integration, network communication, and data sharing are truly realized. In the collection of current and voltage, a photoelectric / electronic transformer digital electrical measurement system is used to realize the digital application of electrical quantity data acquisition, and to realize the transformation from conventional substation device redundancy to information redundancy, and to realize the application of information integration provides the basis. The current and voltage required for the calculation of the digital substation relay protection device is obtained from the optical Ethernet port through the SMV m...

AI Technical Summary

Problems solved by technology

This increases the reliance on high-level relay protection personnel, and there are often situations where wrong inspections or inspections cannot be carried out in field work

[0004] Moreover, for on-site commissioning work, since the newly installed equipment is often put into production in a hurry, the time left for acceptance testing is short, resulting in the on-site personnel often failing to prepare a reasonable test plan according to the protection principle

The protection function is not fully tested, causing equipment hidden dangers

At present, the format of the test report is not fixed, and most users need to manually fill in the test report with the results formed by the test device. On the one hand, it takes a lot of time to organize the test report; on the other hand, due to the manual processing of the report, it is very difficult It is difficult to guarantee the authenticity of test data

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