An electronic voltage transformer

Abstract

The invention relates to an electronic voltage transformer comprising an electronic voltage transformer body, an excitation detector and a Freescale IMX6 processing chip. The excitation detector is used for carrying out excitation detection on the shell of the electronic voltage transformer body. The Freescale IMX6 processing chip receives the excitation detection result and determines the defect type of the shell of the electronic voltage transformer body based on the excitation detection result. According to the invention, multiple parameters of the electronic voltage transformer can be self-detected while the structure of the electronic voltage transformer is optimized.

Description

technical field [0001] The invention relates to the field of electric power, in particular to an electronic voltage transformer. Background technique [0002] The working principle of the transformer is as follows: In the power supply line, the current difference is from a few amps to tens of thousands of amps, and the voltage difference is from a few volts to several million volts. The current and voltage in the line are relatively high, such as direct measurement is very dangerous. In order to facilitate the measurement of the secondary instrument, it needs to be converted into a relatively uniform current and voltage, and the transformer is used to play the role of variable current, variable voltage and electrical isolation. Most of the display instruments are pointer-type current and voltmeters, so most of the secondary currents of the current transformers are ampere-level (such as 5, etc.). With the development of the times, most of the power measurement has reached d...

AI Technical Summary

Problems solved by technology

[0004] However, the electronic voltage transformer in the prior art has high structural redundancy and high cost, which is too cost-effective for the power supply management department that uses voltage transformers in large quantities. At the same time, the electronic voltage transformer in the prior art The controller lacks some necessary on-site parameter detection equipment, which leads to poor real-time performance of on-site data transmission, and easily delays the processing time of on-site faults

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