Portable insulator zero-value overhead testing device

Abstract

The invention discloses a portable insulator zero-value overhead testing device, and belongs to the field of electrical equipment measurement. The device comprises an insulation shell, as well as a master control chip, a high frequency transformation circuit, a sampling resistance circuit, an A / D converter, a liquid crystal display module and a voice broadcasting module which are arranged in the insulation shell, wherein the control signal output end of the master control chip is connected into the input end of a detected insulator via the high frequency transformation circuit, and the output end of the detected insulator is connected into the input end of the sampling resistance circuit; the output end of the sampling resistance circuit is connected into the input end of the master control chip; the video-audio signal output end of the master control chip is connected into the liquid crystal display module and the voice broadcasting module via the A / D converter; and a tightness-adjustable fixing band is arranged on one side of the insulation shell. The device can be used for testing while moving, and is convenient and safe to operate.

Description

technical field [0001] The invention belongs to the field of electrical equipment measurement, and in particular relates to a portable insulator zero-value high-altitude testing device. Background technique [0002] The zero value detection of substation insulators is the main way to test the insulation performance of insulators, and it is one of the items that must be done in routine inspections. The insulator zero value detection tool widely used now includes the rod for insulator zero value test and the insulation resistance meter electrically connected to it. The difficulty of operation, especially in the process of high-altitude operations, seriously affects the safety of test and measurement work. The operator needs to hold the handle of the tester to prevent the instrument from falling during the measurement, which is very inconvenient to carry. During the test, the "trigger" needs to be pulled with the finger, which cannot be tested while moving on the insulator str...

AI Technical Summary

Problems solved by technology

The insulator zero value detection tool widely used now includes the rod for insulator zero value test and the insulation resistance meter electrically connected to it. The difficulty of operation, especially in the process of high-altitude operations, seriously affects the safety of test and measurement work

The operator needs to hold the handle of the tester to prevent the instrument from falling during the measurement, which is very inconvenient to carry. During the test, the "trigger" needs to be pulled with the finger, which cannot be tested while moving on the insulator string, resulting in high labor intensity and high safety risks for the operator. The problem

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