Unlock instant, AI-driven research and patent intelligence for your innovation.

Online monitoring and diagnosing method for mole number imbalance degree of current transformers

A technology of current transformer and diagnosis method, applied in the direction of measuring electrical variables, instruments, measuring devices, etc., can solve the problems of gas pressure and temperature monitoring, fault diagnosis, unbalanced number of moles of current transformers, etc., and achieve the effect of preventing accidents.

Pending Publication Date: 2021-03-26
ZHUHAI YADO MONITORING TECH CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of the present invention is to provide an online monitoring and diagnosis method, device and storage medium for the molar quantity imbalance degree of a current transformer, aiming to solve the problems of gas pressure temperature monitoring and fault diagnosis in the existing current transformer

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
  • Online monitoring and diagnosing method for mole number imbalance degree of current transformers
  • Online monitoring and diagnosing method for mole number imbalance degree of current transformers
  • Online monitoring and diagnosing method for mole number imbalance degree of current transformers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] see figure 1 , Embodiment 1 of the present invention provides an online monitoring and diagnosing method for the molar quantity imbalance degree of a current transformer. The online monitoring and diagnosing method for the molar quantity imbalance degree of a current transformer includes:

[0077] Step S11: collecting the gas pressure value and shell temperature value in the current transformer;

[0078] Step S12: Calculating the unbalance degree of the molar quantity of the current transformer;

[0079] Step S13: Continuously monitor the molar quantity imbalance of the current transformer, and make a diagnosis on the state of the current transformer equipment according to the set diagnostic threshold.

[0080] Specifically, in the first embodiment, the insulating oil of the current transformer is a mineral oil obtained by distilling and refining natural petroleum, and is a mixture of hydrocarbons with different molecular weights, including alkanes, alkenes, cyclic Al...

Embodiment 2

[0117] Please refer to image 3 , image 3 The schematic cross-sectional view of the current transformer provided by Embodiment 2 of the present invention. Compared with Embodiment 1, Embodiment 2 provided by the present invention is that a distance measuring sensor is added to the current transformer 100. Specifically, the current transformer 100 includes Rain cover 110 and body 120, in said body 120 there is an oil-filled area 121 and a gas area 122 above the oil-filled area 121, an expander 130 is arranged above the gas area 122, and said expander 130 divides the gas area 122 The gas in the gas is sealed inside, when the gas volume in the gas region 122 changes, the expander 130 communicates with the gas and changes its own volume as the gas volume expands; A distance measuring sensor 140 is disposed on the top of the rain cover 110 , and the distance measuring sensor 140 is used to measure the distance from the top 131 of the expander to the distance measuring sensor 140 ...

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 provides an online monitoring and diagnosing method and device for the mole number imbalance degree of current transformers and a storage medium. The method comprises the steps of collecting a gas pressure value and a shell temperature value in the current transformer; calculating the mole number imbalance degree of the current transformers; and continuously monitoring the mole number imbalance degree of the current transformer, and diagnosing the equipment state of the current transformer according to a set diagnosis threshold. Through the technical scheme provided by the invention, 24-hour uninterrupted monitoring of the current transformer is realized on line, the running and fault states of the current transformer equipment can be evaluated, accidents are prevented, and afeasible means is provided for real-time monitoring of the running and fault states of the equipment.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring and diagnosis of current transformers, in particular to an on-line monitoring and diagnosis method, device and storage medium for the molar quantity imbalance degree of a current transformer. Background technique [0002] A large number of oil-filled electrical equipment is running in the existing power system, including transformer high-voltage bushings, current transformers, circuit breakers and other oil-less equipment. State is of great significance to the safe and stable operation of power system. However, these equipments will fail due to improper manufacture, inspection, maintenance and oil quality deterioration, and vicious accidents such as explosions and fires will occur from time to time, affecting the safe and stable operation of the power grid and the reliability of power supply. [0003] At present, the maintenance of such equipment in substations generally adopts manual ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02G01D21/02
CPCG01R35/02G01D21/02
Inventor 郭晨华潘晨曦宁松浩汪俊杨志强
Owner ZHUHAI YADO MONITORING TECH CO LTD