Automatic zero-adjustment and zero-detection device and method for current transformer verification based on current comparator

A technology of current transformer and current comparator, which is applied in the field of electrical measurement, can solve the problems of heavy workload and low degree of automation, and achieve the effect of improving work efficiency

Active Publication Date: 2018-07-03
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +4
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned whole verification process has the problems of low degree of automation and heavy workload

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
  • Automatic zero-adjustment and zero-detection device and method for current transformer verification based on current comparator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0016] The present invention provides an automatic zero-adjustment and zero-detection device for current transformer verification based on a current comparator, such as figure 1 As stated, it includes a voltage regulator 1, a current booster 2, an auxiliary transformer 3, a current comparator 4, a current transformer calibrator 5, a current load box 6, an electronic zero adjustment box 7 and a computer 8, wherein the The primary (terminal A and terminal X) of the voltage regulator 1 is used to connect to the AC power supply, the secondary (terminal a and terminal x) of the voltage regulator 1 is connected to the primary of the booster 2, and one end of the secondary of the booster 2 Used to connect the non-polar end of the primary winding of the current transformer 9 under test, the other end of the secondary side of the current booster 2 is con...

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 an automatic zero-adjustment and zero-detection device for current transformer verification based on a current comparator. connection, the current comparator is connected between the tested current transformer and the auxiliary transformer, the auxiliary transformer, the current comparator and the tested current transformer are all connected to the corresponding interface of the current transformer calibrator, and the auxiliary transformer is connected with an electronic Zero adjustment box, the current transformer under test is connected to the current load box, the verification data communication terminal of the current transformer calibrator is connected to the communication terminal of the computer, the first load adjustment serial port of the current transformer calibrator is connected to the electronic zero adjustment box The control terminal of the current transformer calibrator is connected to the second load adjustment serial port of the current transformer calibrator and the control terminal of the current load box, and the voltage regulator control serial port of the current transformer calibrator is connected to the control terminal of the voltage regulator. The invention realizes the automatic verification of the high-precision current transformer.

Description

technical field [0001] The invention relates to the technical field of electrical measurement, in particular to an automatic zero-adjustment and zero-detection device and method for current transformer verification based on a current comparator. Background technique [0002] In various provincial electric power experiment institutes, provincial metering bureaus and some regional power supply bureaus, in order to verify high-precision current standard transformers, double-stage current transformers and current comparators are widely used as standard transformers. Due to the large workload of current standard transformer verification, complicated data processing, and high requirements for verification personnel, in order to meet modern needs and facilitate computer information processing, intelligence has become the future development trend and research hotspot of current standard transformer calibrator. [0003] At present, the most authoritative statutory verification organi...

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 史会轩张亚军王龙华吴宏斌李原魏华李磊刘浩彭淑华王雪卢欣解岩李常春
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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