Title:
ZERO-PHASE-SEQUENCE IMPEDANCE ADJUSTING DEVICE AND METHOD OF ZERO-PHASE-SEQUENCE CURRENT FILTER
Document Type and Number:
WIPO Patent Application WO/2009/062432
Kind Code:
A1
Abstract:
A zero-phase-sequence impedance adjusting device and method of a zero-phase-sequence
current filter adjusts the zero-phase-sequence impedance of a zero phase filter
having a common terminal between a multi-phase AC power and a load. The device
and method includes an obturator having two terminals and one or more taps, an
input neutral wire and an output neutral wire, the input neutral wire connects
with the AC power, the output neutral wire connects with the load, the common terminal
of the zero-phase-sequence filter connects with the input neutral wire and the
output neutral wire through the obturator, the zero-phase-sequence of the zero-phase-sequence
filter in parallel with the load is changed by changing the tap of the obturator.
Inventors:
LU WEI-TING (CN)
Application Number:
PCT/CN2008/072604
Publication Date:
May 22, 2009
Filing Date:
October 07, 2008
Export Citation:
Assignee:
LU HSAIO TING (CN)
LU WEI-TING (CN)
LU WEI-TING (CN)
International Classes:
H02J3/00
Foreign References:
| CN1746690A | 2006-03-15 | |||
| US6043569A | 2000-03-28 |
Attorney, Agent or Firm:
TIANZHENG PATENT & TRADEMARK ATTORNEYS (ChangdimingyuanNo. 9, Qingchun Roa, Hangzhou Zhejiang 9, CN)
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