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Portable on-line measurement instrument for electrician electric bridge drain voltage

A technology of measuring instrument and leakage voltage, applied in the direction of measuring current/voltage, instrument, measuring device, etc., it can solve the problem that the online monitoring of insulation layer has not been carried out, achieve long-distance measurement and control, and realize large-scale continuous leakage voltage measurement. Effect

Inactive Publication Date: 2014-08-13
朱玉光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the online monitoring of the insulation layer of electrical (power) equipment during operation has not yet been carried out.

Method used

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  • Portable on-line measurement instrument for electrician electric bridge drain voltage
  • Portable on-line measurement instrument for electrician electric bridge drain voltage
  • Portable on-line measurement instrument for electrician electric bridge drain voltage

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Comparison scheme
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Embodiment Construction

[0058] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] This design scheme and specific implementation meet the following conditions:

[0060] 1. The scheme of the present invention is based on the principle of the previous invention (application number: 20061004224.8; publication number: CN1851484A.).

[0061] 2. This measuring instrument is suitable for three-phase four-wire neutral wire grounding system.

[0062] 3. This measuring instrument is suitable for leakage voltage measurement of 220V single-phase electrical appliances and 380V three-phase electrical appliances.

[0063] 4. This measuring instrument can continuously measure any value within the leakage voltage range, such as 0.34~188.6V in this scheme.

[0064] 5. The measuring instrument monitors the safety value of electrical appliances, and its setting value can be set arbitrarily within the continuous range of 0.34 ~ 188.6...

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Abstract

The invention belongs to leading cutting-edge technology in the field of electric (electrical power) equipment electrotechnical measurement and safety, and discloses a portable electrotechnical bridge leakage voltage online measuring instrument, which consists of a measuring circuit, a setting circuit, a comparison indicating circuit, a digital voltmeter circuit, a simulation experiment circuit and a power supply circuit. The measuring instrument can measure shell leakage voltage values for the electric (electrical power) equipment, and in particular is suitable for the following aspects: 1, measuring the shell leakage voltage values of the electric (electrical power) equipment on line; 2, judging operating safety degree of the electric (electrical power) equipment on line according to the leakage change of the electric (electrical power) equipment; 3, realizing remote monitoring and automatic operation of the electric (electrical power) equipment according to the method; and 4, testing the insulating property and the quality of insulation materials according to the method.

Description

Technical field: [0001] The invention belongs to the field of electrical measurement and safety of electrical appliances (power) equipment. [0002] The invention discloses a <portable electrician bridge leakage voltage on-line measuring instrument>, which can measure the leakage voltage value of the electrical (power) equipment shell on-line. Specifically, it applies to the following aspects. [0003] 1. On-line measurement of the leakage voltage value of the shell of electrical (power) equipment. [0004] 2. Judging the operating safety of electrical (electric) equipment based on changes in leakage voltage online. [0005] 3. According to the method of the present invention, remote monitoring and automatic operation of electrical (electric) equipment can be realized. [0006] 4. According to the method of the present invention, the insulating properties and advantages and disadvantages of insulating materials can be tested. Background technique: [0007] Any elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/155G01R19/165
Inventor 朱玉光
Owner 朱玉光
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