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

On-load voltage regulation circuit of interleaved parallel multi-gear transformer with polarity conversion

A voltage regulation circuit and polarity conversion technology, applied in transformers, variable transformers, and conversion equipment that can be converted to DC without intermediate conversion, can solve problems such as complex switch structures and reduce the number of switching times.

Pending Publication Date: 2019-08-30
ZHEJIANG BOTHWELL ELECTRIC
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upper limit of its on-off times determines the service life of the voltage regulating switch designed according to this circuit." This defect remains unchanged.
And as the number of switch gears increases, the number of transition circuit selection switches also increases, and the switch structure tends to be complicated

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
  • On-load voltage regulation circuit of interleaved parallel multi-gear transformer with polarity conversion
  • On-load voltage regulation circuit of interleaved parallel multi-gear transformer with polarity conversion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The structural characteristics and working principle of the positive and negative voltage regulating circuit of the present invention will be further described below in conjunction with the accompanying drawings.

[0057] see figure 1 Shown is a schematic diagram of a five-speed transformer voltage regulating circuit under the technical solution of this aspect. The circuit is composed of a main winding, a voltage regulating winding, a rated voltage branch, a transition switching unit, and three voltage regulating branches.

[0058] The transition switching unit includes a first input terminal T1, a second input terminal T2, an output terminal Xb, and a vacuum interrupter D0 connected in series between the first input terminal T1 and the output terminal Xb in parallel with a transition resistor R.

[0059] The first voltage regulating coil L1 and the second voltage regulating coil L2 are connected end to end to form a voltage regulating winding, and a voltage regulating ...

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 the field of distribution transformers, in particular to an on-load voltage regulation circuit of an interleaved parallel multi-gear transformer with polarity conversion. Theon-load voltage regulation circuit includes a main winding, a polarity conversion switch, a voltage regulation winding, a transition switching unit, a rated voltage branch and several voltage regulation branches. According to the technical scheme, the polarity conversion switch is arranged between the main winding and the voltage regulation winding, and forward and reverse voltage regulation is realized by adjusting the independent contact switch-on end of the polarity conversion switch. One ends of the voltage regulation branches are respectively connected to the two end taps and middle tapsof the voltage regulation winding, and the other ends are interlaced and connected in parallel into two groups which are connected with the two input ends of the transition switching unit respectively. The input end of the rated voltage branch is connected with the output end of the main winding, and the output end of the rated voltage branch is connected with the output end of the voltage regulation circuit. The beneficial effects are as follows: the on-off frequency of the on-off switch is reduced, and the service life of the corresponding voltage regulation switch is increased; and the transition voltage changes with the voltage regulation gear during voltage regulation, and there is no need for gear-skipping voltage regulation.

Description

technical field [0001] The invention relates to the field of distribution and transformation transformers, in particular to a transformer on-load voltage regulation circuit. Background technique [0002] In the patent with the application number 201610121960 and the title: "A Permanent Magnet Vacuum On-Load Voltage Regulator, Transformer and On-Load Voltage Regulation Method", it provides a method of using two vacuum interrupters to form the main circuit and the transition circuit respectively. Structural on-load voltage regulation method. The key points of this technical solution are: during normal operation, the vacuum interrupter of the main circuit is connected, the main circuit is in the connected state, the vacuum interrupter of the transition circuit is disconnected, the transition circuit is in the disconnected state, The pressure winding determines the external voltage supply gear of the circuit. When the gear is switched, the transition circuit vacuum interrupter...

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): H02P13/06H01F29/04H01H9/00
CPCH01F29/04H01H9/0038H02P13/06
Inventor 吴正文姜方军
Owner ZHEJIANG BOTHWELL ELECTRIC
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