Title:
ON-LOAD TAP CHANGER AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/120143
Kind Code:
A1
Abstract:
An on-load tap changer is disclosed. It includes an actuator configured to adjust a turn ratio of the transformer, and a processing unit configured to control the actuator and to communicate with a control device via a digital signal connection. The processing unit is further configured to receive a status detected by a sensor. A method of manufacturing the on-load tap changer is also disclosed. The embodiments according to the present disclosure provide a digitalized on-load tap changer that allows various statuses to be monitored or controlled, by which various advantages can be achieved. For example, the life of a contact of the transformer can be predicted in addition. Other data can be used to determine whether it is safe to adjust the contact of the transformer. Moreover, the optical fibers between the on-load tap changer and an external device enable an isolated transmission of control and data signals that almost eliminates interferences.
Inventors:
HU BO (CN)
ZHAO XIN (CN)
SUN HUIGANG (CN)
ZHAO XIN (CN)
SUN HUIGANG (CN)
Application Number:
PCT/CN2016/113781
Publication Date:
July 05, 2018
Filing Date:
December 30, 2016
Export Citation:
Assignee:
ABB SCHWEIZ AG (CH)
HU BO (CN)
ZHAO XIN (CN)
SUN HUIGANG (CN)
HU BO (CN)
ZHAO XIN (CN)
SUN HUIGANG (CN)
International Classes:
H01H9/00
Domestic Patent References:
| WO2007117696A2 | 2007-10-18 |
Foreign References:
| US20100241286A1 | 2010-09-23 | |||
| CN203734579U | 2014-07-23 | |||
| GB2158253B | 1987-06-17 | |||
| CN101976893A | 2011-02-16 | |||
| JPH05120945A | 1993-05-18 | |||
| DE19744465C1 | 1999-03-11 |
Other References:
See also references of EP 3563398A4
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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