An Evaluation Method for Current Transformer Operation

A technology of current transformer and evaluation method, which is applied in the field of electric power, can solve problems such as insufficient basis for power replenishment, heavy workload, untimely fault discovery, etc., and achieve the effect of improving the ability to prevent risks

Active Publication Date: 2018-06-26
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, power companies mainly judge the operating status of current transformers in the field through periodic verification, but periodic verification has a large workload, consumes a lot of manpower and material resources, does not find faults in time, and has insufficient basis for power recovery after faults, etc. A series of disadvantages, therefore, it is urgently needed to establish an evaluation method for the operating state of current transformers

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
  • An Evaluation Method for Current Transformer Operation
  • An Evaluation Method for Current Transformer Operation
  • An Evaluation Method for Current Transformer Operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] Such as figure 1 As shown, a current transformer operation evaluation method includes the following steps:

[0042] 1) Collect the original data of the field current transformer through the online monitoring system of the remote metering device, and upload the original data to the data server of the upper PC;

[0043] 2) The host PC classifies the original data, and establishes a mathematical model of current transformer operation evaluation based on the classified original data, which specifically includes the following steps:

[0044] 21) Obtain the initial health index HI of current transformer operation 1 , The initial health index of current transformer HI 1 The calculation is carried out as follows:

[0045] (1) Routine settings

[0046] Set some node values ​​of the health index, including the initial health index of the new equipment, the theoretical aging health index, the end-of-life health index, the lower limit of the health index, the upper limit of the current year...

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 current transformer operation evaluation method, which comprises the following steps: 1) original data of a field current transformer acquired by a system are monitored in an online mode via a remote metering device, and the original data are uploaded to a data server of an upper PC; 2) the upper PC classifies the original data, and according to the original data after classification, a mathematical model for current transformer operation evaluation is built; and 3) according to the built mathematical model for current transformer operation evaluation, current transformer operation is evaluated, a final health index HI of the current transformer is acquired, and according to the final health index HI, an operation trend of the current transformer is predicted and early warning is carried out. Compared with the prior art, the current transformer operation evaluation method has the advantages of being scientific and reasonable, a large specific number of research objects, wide covering range, systemaltization, intelligence and the like.

Description

Technical field [0001] The invention relates to the field of electric power, in particular to a method for evaluating the operation of a current transformer. Background technique [0002] Gateway metering is an important part of the three major five systems under the large marketing system. The operation of the gateway metering device not only reflects the management level, but also relates to the economic benefits of both electricity sales and purchasers. In order to maintain fairness, impartiality, openness, and credibility management devices, and maintain the seriousness of measurement, it is necessary to refine and classify the operation conditions to provide a scientific basis for technical countermeasures. [0003] This time, the project "Research on the Operation Evaluation System and Remote Condition Monitoring Scheme of Gateway Electric Energy Metering Device" undertaken by Shanghai Electric Power Research Institute, Xiamen Hongxiang Company and Technical Service Company, ...

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 Patents(China)
IPC IPC(8): G01R35/02
Inventor 夏东辉杜卫华陈海宾王卉陈圣泽孙闻
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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