Title:
LIGHTNING PROTECTION ON-LOAD REGULATED-CAPACITY TRANSFORMER, AND ON-LOAD REGULATED-CAPACITY SWITCH
Document Type and Number:
WIPO Patent Application WO/2017/181960
Kind Code:
A1
Abstract:
A lightning protection on-load regulated-capacity transformer, and an on-load regulated-capacity switch. The on-load regulated-capacity transformer comprises a low-voltage winding, a high-voltage winding, and an on-load regulated-capacity switch. When the on-load regulated-capacity switch switches the regulated-capacity transformer to a large-capacity state, the transformer winding uses a Dyn11 connection mode, and when the on-load regulated-capacity switch switches the regulated-capacity transformer to a small-capacity state, the transformer winding uses a Yzn11 connection mode. When switching to the small-capacity is implemented, the Yzn11 connection is implemented, and a strong capacity for bearing unbalanced load is provided, that is, a strong single-phase power supply capability is provided, which is applicable to a region where a three-phase load cannot be easily balanced. In addition, a good lightning protection feature is provided, which is specially applicable to a region where the on-load regulated-capacity transformer is suitable for serving as a lightning protection transformer in a region where thunders frequently happen or a region where the electrical resistivity of soil is high.
More Like This:
| WO/2003/044613 | CONTROLLABLE TRANSFORMER |
Inventors:
WU ZHENGWEN (CN)
JIANG FANGJUN (CN)
JIANG FANGJUN (CN)
Application Number:
PCT/CN2017/081185
Publication Date:
October 26, 2017
Filing Date:
April 20, 2017
Export Citation:
Assignee:
ZHEJIANG BOTHWELL ELECTRIC CO LTD (CN)
International Classes:
H01F29/00; H01H33/666
Foreign References:
| CN105788834A | 2016-07-20 | |||
| CN205881664U | 2017-01-11 | |||
| CN105321744A | 2016-02-10 | |||
| CN104282424A | 2015-01-14 | |||
| US4837497A | 1989-06-06 |
Other References:
LI, HUITAO: "A brief analysis on the lighting prevention properties of different configuration distribution transformers", GUANGDONG POWER TRANSMISSION AND SUBSTATION TECHNOLOGY, no. 3, 10 May 2010 (2010-05-10), pages 55 - 56
Attorney, Agent or Firm:
ZHEJIANG JINTONG PATENT AGENCY CO. LTD. (CN)
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