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Method of manufacturing high voltage sampling device

A technology of voltage sampling and manufacturing method, which is applied to measuring devices, measuring electrical variables, manufacturing measuring instruments, etc., can solve the problems of low sensitivity, high sensitivity, small size, etc. volume reduction effect

Active Publication Date: 2017-10-20
WAHLAP TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method for making a high-voltage sampling device with small volume, high sensitivity and low energy consumption in order to overcome the shortcomings of large volume, low sensitivity and high energy consumption of the grid high-voltage sampling equipment in the prior art

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  • Method of manufacturing high voltage sampling device
  • Method of manufacturing high voltage sampling device
  • Method of manufacturing high voltage sampling device

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] Such as Image 6 The illustrated embodiment is a manufacturing method of a high-voltage voltage sampling device, which includes a potting cavity 5 with openings at both ends, and two working circuit cavities 6 respectively arranged at both ends of the potting cavity, extending into the potting cavity Insulating fiberglass bushing 2 in the space surrounded by two working circuit cavities, high-voltage voltage dividing resistor 1 set in the insulating glass fiber bushing, high-voltage metallized film capacitor set on the insulating glass fiber bushing 3. Two metal shielding electrodes 4 arranged at both ends of the insulating glass fiber bushing and respectively connected to both ends of the high-voltage voltage dividing resistor, and an insulating cylinder 9 arranged on the outer peripheral surface of the potting cavity and connected to b...

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Abstract

The invention discloses a method of manufacturing a high voltage sampling device. The device includes a potting cavity with both ends open, two working circuit cavities arranged at the two ends of the potting cavity respectively, an insulating glass fiber sleeve extending into a space formed by the potting cavity and the two working circuit cavities, a high voltage dividing resistor arranged in the insulating glass fiber casing, a high-voltage metalized film capacitor sleeving the insulating glass fiber casing, two metal shielding electrodes arranged at the two ends of the insulating glass fiber casing and connected with the two ends of the high voltage dividing resistor respectively, an insulating cylinder arranged on the outer peripheral surface of the potting cavity, two resistance sampling wires respectively and electrically connected with the two ends of the high voltage dividing resistor, and two capacitor electrode wires respectively and electrically connected with the two ends of the high-voltage metalized film capacitor. The high voltage sampling device has the characteristics of small size, high sensitivity and low power consumption.

Description

technical field [0001] The invention relates to the technical field of power grid high-voltage sampling equipment, in particular to a method for manufacturing a high-voltage voltage sampling device with small volume, high sensitivity and low energy consumption. Background technique [0002] At present, in high-voltage lines (6.6kV, 10kV, 20kV, 35kV, etc.), the working principles of electronic voltage transformers, power measuring instruments, high-voltage electric energy meters and other products include voltage sampling and high-voltage power-taking circuits. The voltage sampling method Mainly divided into two kinds of capacitive voltage divider and resistive voltage divider. The main disadvantage of capacitive voltage division is that the sampling accuracy is not high, the temperature drift is large, and the sampling accuracy of the resistance voltage division sampling method is high, but stray capacitance will also affect the sampling accuracy; The voltage division metho...

Claims

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Application Information

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IPC IPC(8): G01R3/00
CPCG01R3/00
Inventor 王新建户杰王永红刘润军
Owner WAHLAP TECH CO LTD
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