Electronic mutual inductor test system and test method

Abstract

The invention discloses an electronic mutual inductor test system and a test method. The electronic mutual inductor test system comprises a standard device, a signal conversion device, an error measuring device, a test power supply, a merging unit and a tested electronic mutual inductor, wherein the standard device is used for providing a standard signal serving as a test reference; the signal conversion device is used for receiving the standard signal and converting the standard signal into an analog signal which can be acquired by the error measuring device; the test power supply is used for outputting a primary voltage and a primary current for test use; the merging unit is used for receiving a digital signal output by the tested electronic mutual inductor and processing the digital signal; and the error measuring device is used for receiving the standard signal output by the signal conversion device and the digital signal output by the merging unit, and acquiring the ratio difference and the phase difference of the tested electronic mutual inductor. The electronic mutual inductor test system is particularly suitable for a field error test of the electronic mutual inductor, andhas the advantages of convenient test work, high reliability, small equipment volume, light weight, high test result accuracy and the like.

Description

technical field [0001] The invention relates to an electronic transformer testing system and a testing method, in particular to an electronic transformer testing system and a testing method for on-site error testing of the electronic transformer. Background technique [0002] Transformer is a device that converts voltage or current in proportion. Its main function is to convert high voltage or high current into standard low voltage or standard small current in proportion, so as to realize the standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment. change. With the rapid development of optical fiber sensing technology and optical fiber communication technology, optoelectronic technology is more and more widely used in power systems, and electronic transformers have also emerged as the times require. Electronic transformer has many advantages such as small size, light weight, wide frequency band response, no saturati...

AI Technical Summary

Problems solved by technology

However, traditional transformer testing methods and equipment cannot test electronic transformers, so there is an urgent need for a system that can test electronic transformers

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