High-voltage breaker mechanical characteristic fault probability monitoring method and system based on on-line monitoring

A high-voltage circuit breaker and failure probability technology, which is applied in the field of high-voltage circuit breaker mechanical characteristic failure probability monitoring and system based on online monitoring, and can solve the problems of failure judgment and early warning.

Inactive Publication Date: 2013-09-25
UNIV OF JINAN +1
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the application of the online monitoring system, people have carried out various algorithm research on the obtained mechanical characteristic data, including the EMD and SVM algorithm analysis of the circuit breaker vibration sound wave, ...

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
  • High-voltage breaker mechanical characteristic fault probability monitoring method and system based on on-line monitoring
  • High-voltage breaker mechanical characteristic fault probability monitoring method and system based on on-line monitoring
  • High-voltage breaker mechanical characteristic fault probability monitoring method and system based on on-line monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The present invention is described in detail below in conjunction with accompanying drawing:

[0053] figure 1 It is a block diagram of the experimental system, in which: the hydraulic high-voltage circuit breaker (Taikai Electric, model: ZF16-252) has a rated voltage of 252KV and a rated short-time withstand current of 50KA; the circuit breaker sensors are all three-phase independent inputs; the embedded mechanical The characteristic monitoring device (Taikai Electric, model: IEM-610) has the functions of data acquisition, display, waveform file storage (COMTRADE format), communication (DL / T860 standard), and alarm.

[0054] A method for monitoring the failure probability of mechanical characteristics of high-voltage circuit breakers based on on-line monitoring. The expression method: Assuming that for the expression, given f(x 1 x 2 ...) takes the value F, and:

[0055] , then record f(x 1 x 2 ...)for

[0056] The following descriptions all include phase A, ph...

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 discloses a high-voltage breaker mechanical characteristic fault probability monitoring method and system based on on-line monitoring. The method comprises the steps that (1) the mechanical characteristic curve of the breaker is read by an on-line monitoring system under the normal circumstance of the breaker; (2) when the breaker is put into operation in the field, the mechanical characteristic curve of the breaker is read by the on-line monitoring system under the operation circumstance of the breaker; (3) fault probabilities, of energy storage motor fault probability, tripping fault probability and closing fault probability, showed by all characteristic values are respectively calculated by the on-line monitoring system; (4) the total on-line monitoring fault probability, namely, the sum of the fault probabilities worked out according to the third step: F=FM+FF+FH, of the breaker is calculated; (5) whether alarming should be conducted or not is judged by the on-line monitoring system according to the fault probabilities, and a fault alarming signal is generated by the on-line monitoring system when the fault probability is equal to or larger than an threaded alarming value and is not generated by the on-line monitoring system when the fault probability is smaller than the threaded alarming value.

Description

technical field [0001] The invention specifically relates to a method and system for monitoring the failure probability of mechanical characteristics of a high-voltage circuit breaker based on online monitoring. Background technique [0002] Circuit breakers play a vital role in the power grid and are key equipment for effective control of the power system. With the development of society and economy, higher requirements are placed on the safety and reliability of the power system, but in The unplanned power outages caused by circuit breaker failures in power supply and distribution systems account for more than 60% of the total power system outages, and are one of the main factors affecting the safety and reliability of power systems. The mechanical characteristic faults of high-voltage circuit breakers can be summarized into three categories (excluding insulation system faults): [0003] 1) Failure of the energy storage system, including the failure of the energy storage ...

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): G01R31/327
Inventor 王成友张勇程新功刘灿东郭兆静任宏伟宗西举郝朝阳
Owner UNIV OF JINAN
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