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

Capacitive-type external voltage sensor used for circuit breaker switch

A circuit breaker switch and voltage sensor technology, applied in the direction of measuring current/voltage, only measuring voltage, instruments, etc., can solve the problem of general anti-overvoltage impact, anti-overcurrent impact and anti-harmonic impact performance, inconvenient installation and replacement, etc. Affect work efficiency and other issues, achieve the effect of less electromagnetic field interference, simple structure, and improve work efficiency

Pending Publication Date: 2018-11-13
JIANGSU JINGJIANG INSTR TRANSFORMER FACTORY
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of electronic technology, microcomputer relay protection devices gradually occupy a dominant position. In relay protection and measurement, the energy flow and information flow of the control part are separated, so the monitoring equipment no longer needs high-power output sensors. Sampling; at the same time, due to the rapid development of the power industry and the more complex grid conditions, smart current and voltage transformers that improve power factor and grid quality are widely used; Single-phase zero-sequence voltage transformers, single-phase voltage transformers, and single-phase voltage discharge coils with independent structures have general performance in resisting overvoltage shocks, overcurrent shocks, and harmonic shocks; Large, inconvenient installation and replacement; affect work efficiency; therefore, a capacitive external voltage sensor for circuit breaker switches for power distribution equipment is developed, which is suitable for outdoor environments and provides voltage acquisition signals for power distribution terminal FTU / DTU. A multi-functional integrated three-phase intelligent voltage sensor for voltage sampling, measurement, protection, zero sequence, and discharge is imminent

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
  • Capacitive-type external voltage sensor used for circuit breaker switch
  • Capacitive-type external voltage sensor used for circuit breaker switch
  • Capacitive-type external voltage sensor used for circuit breaker switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In order to make the purpose of the invention, technical solutions and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods;

[0018] In the accompanying drawings: a capacitive external voltage sensor for a circuit breaker switch, including a fixed base 9 and a shielded twisted pair 10; it is characterized in that: the fixed base 9 is provided with three phase zero-sequence integrated sensors, They are respectively connected to the A-phase, B-phase, and C-phase circuits; the phase zero-sequence integrated sensor includes a housing 2, the upper end of the housing is provided with a high-voltage end insert 1, and the inside of the housing 2 is provided with a high-voltage end phase-sequence collector. Propylene capacitor 4, high-voltage end zero-sequence polypropylene capacitor 5; the lower end of the high-voltage end p...

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

A capacitive-type external voltage sensor used for a circuit breaker switch is disclosed. A fixed pedestal is provided with three phase-zero-sequence integrated sensors. Each phase-zero-sequence integrated sensor comprises a shell. The upper end of the shell is provided with a high voltage end insert. A high voltage end phase sequence polypropylene capacitor, a high voltage end zero sequence polypropylene capacitor, a low voltage end phase sequence polypropylene capacitor, and a low voltage end zero sequence polypropylene capacitor arranged in the shell are encapsulated into an integral module, and form integral sealing with the shell through an epoxy mixture. A fixed insert is arranged below the low voltage end phase sequence polypropylene capacitor and the low voltage end zero sequence polypropylene capacitor. The shell is a silicone rubber material and an internal surface is coated with semi-flowing silicone rubber liquid. The sensor has complete functions, and voltage sampling, measurement, protection, a zero sequence, discharging and other functions are integrated into one body. The weight is light, the size is small, an installation space is saved, field wiring is reduced, the structure is concise and performance is excellent. And installation and replacing are simple, and work efficiency is increased.

Description

technical field [0001] The invention relates to the field of distribution network automation sampling control, in particular to a capacitive external voltage sensor for a circuit breaker switch. Background technique [0002] With the rapid development of electronic technology, microcomputer relay protection devices gradually occupy a dominant position. In relay protection and measurement, the energy flow and information flow of the control part are separated, so the monitoring equipment no longer needs high-power output sensors. Sampling; at the same time, due to the rapid development of the power industry and the more complex grid conditions, intelligent current and voltage transformers that improve power factor and grid quality are widely used; due to the particularity of the switch on the ZW32 circuit breaker column, the sensor of the prior art Single-phase zero-sequence voltage transformers with independent structures, single-phase voltage transformers, and single-phase ...

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): G01R19/00
CPCG01R19/0084
Inventor 陆汉兵杜桂芬吴兴燕
Owner JIANGSU JINGJIANG INSTR TRANSFORMER FACTORY
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