Device and method for testing electronic type current transformer

Abstract

The invention relates to a device and a method for testing an electronic type current transformer. The device comprises a standard current transformer, a to-be-tested electronic type current transformer, a digital type transformer calibrator, a strong current generator, a merging unit, a digital relay protection tester, a testing host, an impulse voltage generator, an impulse voltage divider, a power frequency withstand voltage machine, a peak value meter, a variable-frequency power source, a partial discharge instrument and a power frequency withstand voltage sub-container. According to the invention, independent testing process before installation of the to-be-tested electronic type current transformer and communication joint debugging testing process after connection of the transformer are monitored respectively by utilizing the device, then independent test for the current transformer after the joint debugging is carried out, and whether the electronic type current transformer passes through each testing process is judged through testing phenomena and testing results. The performance of the electronic type current transformer is detected by simulating various complex environments emerged in a network running scene, so that guarantee is provided for reliable detection for the electronic type transformer, and the quality of electronic transformer products is controlled from the source.

Description

technical field [0001] The invention relates to an electronic current transformer test device and a test method comprising an electronic current transformer installed in a power transformer to perform a communication joint debugging test with the power transformer, and belongs to the technical field of current transformer tests. Background technique [0002] With the proposal of the State Grid Corporation to build a strong smart grid, various equipment used in power systems are developing towards intelligence, and electronic current transformers are due to their small size, light weight, excellent insulation performance, and ability to resist electromagnetic interference Strong, easy to realize a series of advantages of intelligence, etc., are being widely used in power systems. The smart substation is an important part of the smart grid, and the application of electronic current transformers is one of the important signs of the intelligence of the primary equipment of the s...

AI Technical Summary

Problems solved by technology

However, according to the results of the current on-site network operation of electronic current transformers, a series of problems such as false alarms and sudden interruption of signals often occur. The actual operation after installation on the power transformer is included

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