Electronic transformer automatic debugging system

Abstract

Provided is an electronic transformer full-automatic debugging system. The input end of a standard transformer and the input end of a detected electronic transformer are simultaneously connected to the output end of a standard source, the output end of the standard transformer is connected to the analog quantity input end of an electronic transformer calibrator, the output end of the detected electronic transformer is connected to the digital input end of a merging unit through an optical fiber, and the digital output end of the merging unit is connected to the digital quantity input end of the electronic transformer calibrator through an optical fiber. The electronic transformer full-automatic debugging system comprises a control platform. The control platform comprises a DSP chip and a single-chip microcomputer which are connected. The DSP chip is connected with an Ethernet interface and a USB interface board. The Ethernet interface is connected with the electronic transformer calibrator, and the USB interface board is connected with a background computer. The single-chip microcomputer is connected with an RS232 interface which is connected with the control end of the standard source. By means of the electronic transformer full-automatic debugging system, calibration accuracy and calibration efficiency are improved, and the calibration security risk is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of power system equipment calibration, in particular to a fully automatic debugging system for electronic transformers. Background technique [0002] At present, the test device used in the accuracy verification method of electronic transformer is composed of standard source, standard transformer, electronic transformer calibrator and related supporting equipment. The standard source generates a large current (high voltage), which is added to the primary side of the tested electronic transformer and the primary side of the standard transformer at the same time. The electronic transformer calibrator collects the analog output of the standard transformer as the standard value, and simultaneously passes The optical fiber collects the optical signal output of the electronic transformer from the merging unit as the tested value, and the calibrator automatically calculates the amplitude error and phase error of th...

AI Technical Summary

Problems solved by technology

However, this verification method has the following problems: 1. Manual adjustment is used to control the standard source output, which has potential safety hazards and the output accuracy is not high

2. The outdated way of manually reading the data of the electronic transformer calibrator and recording it with a computer has the problem of increasing the current and boosting time due to the slow manual recording speed, which causes serious problems of cable heating

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