Title:
VARIABLE-FLUX VOLTAGE-VARIATION RECTIFIER TRANSFORMER FOR ELECTRIC TROLLEY
Document Type and Number:
WIPO Patent Application WO/2023/092629
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of transformers, and particularly relates to a variable-flux voltage-variation rectifier transformer for an electric trolley. The variable-flux voltage-variation rectifier transformer comprises: a three-phase coil of a double-split four-coil structure, wherein the three-phase coil is divided into a valve-side coil and a grid-side coil corresponding to the valve-side coil, the valve-side coil is split into three first valve-side coils which are in a star connection and three second valve-side coils which are in a delta connection, the grid-side coil is split into three first grid-side coils which are in a delta connection and three second grid-side coils which are in a delta connection, and the first grid-side coil and the second grid-side coil in each phase of coils are connected in parallel; and the first grid-side coil or the second grid-side coil has a number of turns corresponding to a first gear of a first voltage of a grid valve and a second gear of a second voltage of the grid valve. In the present invention, the gear adjustment is convenient and flexible; not only can output voltages be conveniently exchanged on a valve side, but the gear adjustment requirements within a primary-side grid voltage tapping range can also be met; maintenance and management are facilitated; no structural change is generated; and the position of an external connecting line of a grid-side coil is not changed, such that field operation maintenance and management are facilitated.
More Like This:
Inventors:
WU QIYA (CN)
ZHANG XINGEN (CN)
LIU PENGFEI (CN)
SONG ZHIPENG (CN)
ZHANG XINGEN (CN)
LIU PENGFEI (CN)
SONG ZHIPENG (CN)
Application Number:
PCT/CN2021/135183
Publication Date:
June 01, 2023
Filing Date:
December 02, 2021
Export Citation:
Assignee:
WUJIANG TRANSF CO LTD (CN)
International Classes:
H01F27/24; H01F27/30; H01F29/00; H02M5/12
Foreign References:
| CN205723100U | 2016-11-23 | |||
| CN202887956U | 2013-04-17 | |||
| CN202523539U | 2012-11-07 | |||
| CN103413658A | 2013-11-27 | |||
| CN102647093A | 2012-08-22 | |||
| GB2520336A | 2015-05-20 |
Attorney, Agent or Firm:
SUZHOU JINMAI INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
Download PDF: