Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Wireless tester and testing method for live-line measuring zinc oxide arrester

A wireless tester and arrester technology, which can be used in the field of judging the performance of arresters, on-site debugging and testing of power system equipment, and wireless testers, and can solve problems such as large interphase interference and cumbersome wiring.

Inactive Publication Date: 2016-09-07
FUSHUN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a wireless tester for measuring zinc oxide arresters with electricity, which solves the problems of cumbersome wiring and relatively large phase-to-phase interference in the prior art.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wireless tester and testing method for live-line measuring zinc oxide arrester
  • Wireless tester and testing method for live-line measuring zinc oxide arrester
  • Wireless tester and testing method for live-line measuring zinc oxide arrester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] As shown in the figure, the wireless tester includes a sending unit and a receiving unit; the sending unit completes the acquisition of the three-phase voltage signal of the power grid, and calculates the voltage amplitude and phase angle of the power grid at the same time, and transmits it to the receiving unit through wired or wireless means, and the receiving unit completes the whole process. Leakage current acquisition and receiving grid voltage amplitude and phase angle information sent by the sending unit, and comparing the full leakage current phase angle with the received grid voltage phase angle to obtain the phase difference. And through calculation to obtain the arrester resistive leakage current The voltage loop of the sending unit is connected to the secondary voltage terminal of the bus bar, the voltage transformer sends the signal to the amplifying circuit, the high-speed AD conversion circuit converts the received amplifying circuit signal, and the convert...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a wireless tester and testing method for live-line measuring a zinc oxide arrester. The wireless tester comprises a transmitting unit and a receiving unit, wherein the transmitting unit acquires three-phase voltage signals of a power grid, calculates voltage amplitude and phase angle of the power grid, and transmits the voltage amplitude and phase angle information to the receiving unit through a wired or wireless means, the receiving unit acquires full leakage current and receives the voltage amplitude and phase angle information, of the power grid, sent by the transmitting unit, compares the full-leakage current phase angle with the received voltage amplitude of the power grid to obtain the phase difference, and calculates the resistive leakage current of the arrester to determine the performance of the arrester. Three-phase resistive leakage current can be simultaneously and synchronously measured in a short period of time, and the measurement precision is greatly improved.

Description

technical field [0001] The invention relates to on-site debugging and detection of power system equipment, in particular to a wireless tester and a detection method for live-measuring zinc oxide arresters, which are mainly used for judging the performance of arresters and belong to the field of electric power applications. Background technique [0002] In recent years, there have been many new and renovated lines in various regions. As a high-reliability lightning protection unit, zinc oxide arresters play an important role in the safe operation of power systems. The current instruments for testing the performance of zinc oxide arresters are cumbersome in the field test process, and the wiring requires the cooperation of other departments. The interphase interference is relatively large, which affects and damages the instrument and seriously deviates the test data, which cannot provide true and effective test results. Contents of the invention [0003] Aiming at the above-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01R31/00G01R19/25
CPCG01R31/00G01R19/25
Inventor 岳程城董军石峰郭岚黄东伟陈晶阳裴玉杰高崴龚晨斌范希明穆景龙武英明曹慧杰徐建国臧雷默张鸣顾孟山李思民何江老永刚马国海李天赐张佳岩李忠南洋郎东岩郝文峰任东霞张莉
Owner FUSHUN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com