Adjustable high voltage power supply for routine test station of main converter cabinet of locomotive

A routine test, high-voltage power supply technology, applied in the direction of conversion equipment that can be converted to DC without intermediate conversion, to achieve the effect of solving harmonic pollution

Inactive Publication Date: 2010-09-01
CRRC YONGJI ELECTRIC CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an adjustable high-voltage power supply for the routine test station of the locomotive main converter cabinet in order to solve the above-mentioned defects and problems existing in the existing high-voltage power supply used in the routine test station of the main converter cabinet of the locomotive

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
  • Adjustable high voltage power supply for routine test station of main converter cabinet of locomotive
  • Adjustable high voltage power supply for routine test station of main converter cabinet of locomotive
  • Adjustable high voltage power supply for routine test station of main converter cabinet of locomotive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Adjustable high-voltage power supply for the routine test station of the locomotive main converter cabinet, including a three-phase-to-single-phase special transformer U2 and two independently working single-phase adjustable outputs driven by the three-phase to single-phase special transformer The non-contact induction voltage regulator U4, U5, the three-phase to single-phase special transformer U2 has two windings on the primary side, four windings on the secondary side, and two of the four windings on the secondary side are the same as the original One winding of the secondary side is induced (set on the same core column), the other two windings of the secondary side are induced with the other winding of the primary side (that is, set on the same core column), and the end of one winding of the primary side is connected to the other The first ends of the windings are connected, the first end of one winding, the connection node between the two windings, and the end of th...

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 a high voltage power supply, in particular to an adjustable high voltage power supply for a routine test station of a main converter cabinet of a locomotive, and solves the problems of high cost, unbalanced three-phase current and three-phase voltage of a power grid caused by single-phase power consumption and high probability of causing harmonic pollution to the power grid by a converter load and the like in a traditional high voltage power supply for the routine test station of the main converter cabinet of the locomotive. The adjustable high voltage power supply comprises a three-to-single-phase special transformer and two non-contact induction voltage regulators which are dragged by the three-to-single-phase special transformer, wherein the primary side of the three-to-single-phase special transformer is provided with two windings and the secondary side of the three-to-single-phase special transformer is provided with four windings; two windings on the secondary side are induced to one winding on the primary side respectively; the two windings on the primary side are connected end to end; and the four windings on the secondary side are connected in series, two windings on the secondary side are led in from the head end and led out from the tail end during the serial connection and the other two windings on the secondary side are led in from the tail end and led out from the head end. The high voltage power supply of the invention is particularly suitable for the routine test station of the main converter cabinet of the HXD2 type locomotive.

Description

technical field [0001] The invention relates to a high-voltage power supply, in particular to an adjustable high-voltage power supply for a routine test station of a locomotive main converter cabinet. Background technique [0002] In the prior art, the output side of a three-phase 10KV / 380V power transformer is connected to a single-phase 380v / 850V step-up transformer to supply a single-phase 850v AC voltage for a routine test station of two locomotive main converter cabinets. Its defects are: 1. One more 10KV / 380V power transformer is used, that is, each routine test station needs a 10KV / 380V power transformer. 2. Single-phase power consumption brings three-phase current and voltage imbalance to the power grid. 3. The load of the converter can easily cause harmonic (especially the third harmonic) pollution to the power grid. Contents of the invention [0003] The present invention provides an adjustable high-voltage power supply for the routine test station of the locom...

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): H02M5/10
Inventor 李勇斌赵玉忠王成新尚峰亮张创业
Owner CRRC YONGJI ELECTRIC CO LTD
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