Method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil

A monitoring device and transformer oil technology, applied in the field of electric power, can solve the problems of inaccurate online monitoring data of dissolved gas, and achieve the effect of avoiding human factors

Inactive Publication Date: 2017-05-17
STATE GRID HEBEI ELECTRIC POWER RES INST +2
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the patent of the present invention is to propose a method for evaluating the accuracy of online synchronous comparison of an online monitoring device for dissolved gas in transformer oil. The provided oil sampl

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
  • Method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil
  • Method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil
  • Method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention is specifically described and illustrated below in conjunction with the accompanying drawings by means of specific embodiments:

[0021] A specific implementation plan of an online synchronous comparison and evaluation method for the accuracy of an online monitoring device for dissolved gas in transformer oil. The chromatographic calibration and comparison laboratory regularly organizes a 220kV and above-level online monitoring device for dissolved gas in transformer oil to detect the accuracy The online synchronous comparison test is used to evaluate the measurement accuracy and repeatability of the online monitoring device. The transformer simulation oil distribution device is connected to the transformer oil tank, after the transformer simulation device is cleaned, 10 L of transformer oil is injected, and then connected to the standard gas cylinder group to input quantitative standard gas with a national standard substance certificate and then ci...

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 method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil. The method comprises the following steps of using a photoacoustic spectrometry online monitoring device which is qualified in calibration as a reference instrument; respectively connecting a to-be-calibrated instrument and the reference instrument with a transformer simulation oil distribution device through different parallel ports; enabling the transformer simulation oil distribution device to clean by self, and adding the transformer oil; connecting the transformer simulation oil distribution device with a standard gas cylinder group to prepare an oil sample; enabling the to-be-calibrated instrument and the reference instrument to simultaneously detect the oil sample of the transformer simulation oil distribution device; enabling a computer to process data, and verify the accuracy of detection data of the to-be-calibrated instrument. The method has the advantages that the problem of difficulty in comparison of the online monitoring device for the dissolved gas in the transport oil in the running process is solved, and the accuracy of the online monitoring device of the transformer oil can be synchronously compared on line.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to an evaluation method for online synchronous comparison accuracy of an online monitoring device for dissolved gas in transformer oil. Background technique [0002] With the rapid development of my country's power industry, transformers with a voltage level of 220kV and above are equipped with transformer oil online monitoring devices. Dissolved gas monitoring device in oil is recognized as one of the most effective methods to prevent the failure of oil-filled electrical equipment, which can be divided into offline and online testing. How to ensure the detection accuracy of the dissolved gas monitoring device in transformer oil is particularly important. The traditional method is to use regular chromatographic off-line comparisons to solve the detection accuracy of the online monitoring device. Although off-line gas chromatography has the advantages of good sele...

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): G01N21/17
CPCG01N21/1702G01N2021/1704
Inventor 刘克成张立军马慧芳王娟怡王艳
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap