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Title:
SWITCHING RELAY OF LOAD-TAP-CHANGER, AND LOAD-TAP-CHANGER
Document Type and Number:
WIPO Patent Application WO/2020/240781
Kind Code:
A1
Abstract:
A switching relay of a load-tap-changer according to an embodiment comprises: a first tap terminal and a second tap terminal; a valve; a first current-limiting resistor; and a second current-limiting resistor. The first tap terminal and the second tap terminal are connected to a tap selector of the load-tap-changer. The valve is connected to the first tap terminal via a first valve switch, and is connected to the second tap terminal via a second valve switch. The first current-limiting resistor is connected to the first tap terminal via a first resistor switch in parallel to the valve. The second current-limiting resistor is connected to the second tap terminal via the second resistor switch in parallel to the valve.

Inventors:
EGUCHI NAOKI (JP)
ABE SHINICHIRO (JP)
Application Number:
PCT/JP2019/021568
Publication Date:
December 03, 2020
Filing Date:
May 30, 2019
Export Citation:
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Assignee:
TOSHIBA KK (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
H01F29/04
Foreign References:
JP2013528942A2013-07-11
JP2016139701A2016-08-04
JP2013243194A2013-12-05
JPH07220956A1995-08-18
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (Marunouchi Chiyoda-k, Tokyo 20, JP)
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