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

Test equipment for partial discharge of ultra-low frequency cable based on optical electric field transducer

An optical electric field and partial discharge technology, which is applied in the direction of testing dielectric strength, etc., to achieve the effect of improving work efficiency, high sensitivity, and improving the efficiency and accuracy of on-site testing.

Active Publication Date:
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no similar device in this industry

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
  • Test equipment for partial discharge of ultra-low frequency cable based on optical electric field transducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation.

[0018] The structure of the ultra-low frequency cable partial discharge test equipment based on the optical electric field sensor of the present invention is as follows: figure 1 As shown, the device consists of an optical electric field sensor 1, a high-voltage wire 2, an ultra-low frequency power supply 3, a high-voltage optical fiber 4, a photoelectric conversion and output device 5, a synchronous signal transmission line 6, a partial discharge signal transmission line 7, a partial discharge test instrument 8, and a high-voltage measurement signal A transmission line 9, a voltage regulation control device 10, a voltage regulation signal transmission line 11, and a sample 12 are formed.

[0019] The optical electric field sensor 1 can meet the performance requirements of optical detection in a high-voltage environment, and reflects the cha...

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 test equipment for partial discharge of an ultra-low frequency cable based on an optical electric field transducer. The test equipment comprises the optical electric field transducer, a high voltage wire, an ultra-low frequency power supply, a high voltage optical fiber, a photoelectric conversion and output unit, a synchronous signal transmission wire, a partial discharge signal transmission wire, a partial discharge test instrument, a high voltage measurement signal transmission wire, a voltage regulation control apparatus, a voltage regulation signal transmission wire and a test sample. The test equipment disclosed by the invention has the advantages that: the test equipment emphatically solves the problem in heavy high voltage measurement apparatus and difficulty in acquirement of a synchronous voltage signal in a major network during offline test works of outdoor cable equipment, and fills the blank in acquirement of real synchronous voltage signals; the test equipment is simple and firm in structure, light in weight, small in volume and convenient in operation on a basis that functional requirements are met.

Description

technical field [0001] The invention relates to the working field of electrical performance testing of electric power equipment. Specifically, it is an ultra-low frequency cable partial discharge test equipment based on an optical electric field sensor. Background technique [0002] Currently on the market, the detection methods for partial discharge of cables mainly include acoustic emission method and electromagnetic coupling method. The sensor used in the acoustic emission method is an ultrasonic sensor, but its frequency range is low, which cannot meet the needs of measuring high-frequency partial discharge signals. The sensors used in the electromagnetic coupling method can be divided into capacitive, inductive, and high-frequency sensors. The detection sensitivity of the capacitive strip sensor is restricted by the installation environment, and at the same time, it needs to keep a sufficient distance from the outer shielding layer to ensure that the signal can be det...

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): G01R31/12
Inventor 刘聪汉陈智勇韦魏邓雨荣赵坚李恒灿
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