Electronic capacitive voltage divider

Abstract

The invention relates to an electronic capacitive voltage divider for the power industry. The electronic capacitive voltage divider consists of a sleeve, an upper flange, an expander, a high-voltage capacitive voltage division part, a low-voltage capacitive voltage division part, a winding fixing part, a lower flange, a base, a medium-voltage terminal and an upper cover plate, wherein the winding fixing part is fixed on the base; the high-voltage capacitive voltage division part and the low-voltage capacitive voltage division part are fixed on the winding fixing part respectively; and the sleeve is fixedly arranged on the lower flange on the periphery of the winding fixing part. The high-voltage capacitive voltage division part and the low-voltage capacitive voltage division part are integrally and fixedly wound on the winding fixing part, so that inner components are stable, and quality instability phenomena caused by bumping are reduced; the low-voltage capacitive voltage division part is designed into a capacitor series connection part and a capacitor parallel connection part, so that measurement accuracy is remarkably improved; and the sleeve is arranged outside the winding fixing part to form an enclosed sleeve cavity, so that the product is high in universality.

Description

technical field [0001] The invention relates to a capacitive voltage divider used in the electric power industry, in particular to an electronic capacitive voltage divider. Background technique [0002] After retrieving relevant patent documents, no electronic capacitive voltage divider with the same structure as the present invention has been found. Capacitive voltage dividers have been widely used in the power industry as a voltage test device for assigning different voltage levels from the measured voltage. Due to the structure of the existing capacitor voltage divider, the high-voltage capacitor voltage divider and the low-voltage capacitor voltage divider are generally connected in series to achieve the purpose of reducing the voltage, which makes the accuracy of the test relatively low and requires high testing. It is difficult to meet the requirements of high-precision testing for high-precision products, so it is necessary to improve the existing capacitive voltage ...

AI Technical Summary

Problems solved by technology

Due to the structure of the existing capacitor voltage divider, the high-voltage capacitor voltage divider and the low-voltage capacitor voltage divider are generally connected in series to achieve the purpose of reducing the voltage, which makes the accuracy of the test relatively low and requires high testing. It is difficult to meet the requirements of high-precision testing, so it is necessary to improve the existing capacitive voltage divider to meet the actual needs

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