Title:
MOTOR TRAIN UNIT AUXILIARY POWER SUPPLY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/152652
Kind Code:
A1
Abstract:
A motor train unit auxiliary power supply apparatus. A normally open three-phase isolation contactor main contact is connected in series between a first unit three-phase four-wire system bus bar and a second unit three-phase four-wire system bus bar. A coil of the three-phase isolation contactor is connected in series between a first unit power supply circuit and a second unit power supply circuit. Two ends of a coil of a first unit alternating current relay are respectively connected to a one-phase bus bar (U101, V101, W101) and a neutral conductor (N100) of the first unit. Two ends of a coil of a second unit alternating current relay are respectively connected to a one-phase bus bar (U101A, V101A, W101A) and a neutral conductor (N100A) of the second unit. When the first unit three-phase four-wire system bus bar supplies power, the first unit control circuit controls the first unit power supply circuit to be powered on, the coil of the three-phase isolation contactor to get power, and the normally open three-phase isolation contactor main contact to be closed. When the second unit three-phase four-wire system bus bar supplies power, the second unit control circuit controls the second unit power supply circuit to be powered on, the coil of the three-phase isolation contactor to get power, and the normally open three-phase isolation contactor main contact to be closed. Any unit in the apparatus supplies power, and the three-phase isolation contactor is closed to realize power supply for the whole train.
Inventors:
ZHOU JIANSHENG (CN)
JIAO JINGHAI (CN)
YU YANZUN (CN)
NIU BUZHAO (CN)
JIANG FUJIE (CN)
WU DONGHUA (CN)
JIAO JINGHAI (CN)
YU YANZUN (CN)
NIU BUZHAO (CN)
JIANG FUJIE (CN)
WU DONGHUA (CN)
Application Number:
PCT/CN2016/106219
Publication Date:
September 14, 2017
Filing Date:
November 17, 2016
Export Citation:
Assignee:
CRRC QINGDAO SIFANG CO LTD (CN)
International Classes:
H02J9/00; H02J9/06
Foreign References:
| CN105790419A | 2016-07-20 | |||
| CN205657487U | 2016-10-19 | |||
| CN104932311A | 2015-09-23 | |||
| CN204998355U | 2016-01-27 | |||
| CN103368251A | 2013-10-23 | |||
| CN204506572U | 2015-07-29 | |||
| CN203697972U | 2014-07-09 | |||
| JP2009005479A | 2009-01-08 |
Other References:
See also references of EP 3396811A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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