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

Miniature resonant-resistant three-phase outdoor composite insulation combination voltage transformer

A voltage transformer and composite insulation technology, applied in the field of transformers, can solve the problems of inconvenient replacement without built-in fuse, aging and damage of insulating materials, three-phase imbalance, etc., and achieve the suppression of ultra-low frequency oscillation overcurrent and safety and insulation improvement, the effect of preventing three-phase voltage imbalance

Inactive Publication Date: 2018-08-10
DALIAN ZHONGGUANG INSTR TRANSFORMER
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides a miniaturized anti-resonance three-phase outdoor composite insulation combined voltage transformer, which solves the problem of large size of the existing outdoor combined voltage transformer, inconvenient replacement of no built-in fuse, and aging of insulating materials. loss, unbalanced three-phase, prone to resonance burnout technical problems

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
  • Miniature resonant-resistant three-phase outdoor composite insulation combination voltage transformer
  • Miniature resonant-resistant three-phase outdoor composite insulation combination voltage transformer
  • Miniature resonant-resistant three-phase outdoor composite insulation combination voltage transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 4 , 5 As shown in and 6, it has three built-in voltage transformers and one harmonic elimination transformer, in which one terminal of the primary winding coils (9), (10) and (11) of the A, B, and C three-phase voltage transformers respectively passes through The high-voltage fuse (8) is electrically connected to the A, B, and C three-phase primary terminals (1), (2), and (3), and the three N terminals of the primary winding coil of the A, B, and C three-phase voltage transformer are connected in series Connect to the primary terminal O (4) of the harmonic elimination transformer, and connect the other coil terminal N (5) of the harmonic elimination transformer to the primary terminal for direct grounding;

[0031] The ends of the secondary winding coils of A, B, and C three-phase voltage transformers are connected in series to one terminal o of the harmonic elimination transformer, and the secondary terminal n of the harmonic elimination transformer is...

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 a miniature resonant-resistant three-phase outdoor composite insulation combination voltage transformer. Three voltage mutual inductors and a harmonic-elimination mutual inductors are arranged in the miniature resonant-resistant three-phase outdoor composite insulation combination voltage transformer, voltage mutual inductor primary winding coils are arranged on the voltagemutual inductors, a terminal of the primary winding coils of the three voltage mutual inductors is electrically connected with a primary terminal of the voltage transformer via a high-voltage fuse, the other end of the primary winding coils of the three voltage mutual inductors are connected in series to a coil terminal O of the harmonic-elimination mutual inductor, the other coil terminal N of the harmonic-elimination mutual inductor is connected to the primary terminal of the voltage transformer and is electrically and directly connected with ground for use, tail ends of secondary winding coils of the voltage mutual inductors are connected in series to a terminal o of the harmonic-elimination mutual inductor, protection winding coils of the voltage mutual inductors are sequentially connected in series in end-to-end way to form an opening triangle and a harmonic-elimination resistor is connected in series among openings of the opening triangle. By the miniature resonant-resistant three-phase outdoor composite insulation combination voltage transformer, the safety and the insulativity are greatly improved, three-phase unbalance and harmonic burnt-out phenomena are prevented, and miniature is achieved.

Description

technical field [0001] The invention relates to a miniaturized anti-resonance three-phase outdoor composite insulation combination voltage transformer, in particular to a miniaturized anti-resonance three-phase outdoor composite insulation combination voltage transformer with a 10kV built-in fuse and a resonance elimination resistor, which belongs to the transformer technology field. Background technique [0002] At present, domestic three-phase combined voltage transformers are generally old-fashioned oil-immersed insulated transformers and outdoor epoxy resin cast insulated transformers. Oil-immersed insulating transformers use insulating oil as the insulating medium, which is prone to oil leakage during use and requires frequent and inconvenient maintenance; outdoor epoxy resin insulation is exposed to ultraviolet radiation after several years of operation, the surface of the product is dull, and the water repellency is poor. The surface is uneven, chalking will occur in...

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): H01F38/38H01F27/02H01F27/40H01F27/42H01F27/29H01F27/28
CPCH01F38/38H01F27/02H01F27/022H01F27/28H01F27/29H01F27/40H01F27/402H01F27/425
Inventor 隋广君柳全仁隋国成姜婷婷吴秀娟修德烽于福生李英李添姝于洋
Owner DALIAN ZHONGGUANG INSTR TRANSFORMER
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