ON-LOAD TAP CHANGING DEVICE AND ON-LOAD TAP CHANGING SYSTEM

Title:

ON-LOAD TAP CHANGING DEVICE AND ON-LOAD TAP CHANGING SYSTEM

Document Type and Number:

WIPO Patent Application WO/2018/073966

Kind Code:

A1

Abstract:

Provided is an on-load tap changing device with high durability performance that restrains arc at the time of switching and reduces deterioration of a switch thereof. The device is provided with a first switch part 2 connected to a first tap 91 of a transformer 9 provided in a power system to switch power supplied from the first tap 91, a first impedance changing unit 5 connected in series with the first switch part 2 to increase impedance at the time of the switching operation of the first switch part 2, a second switch part 3 connected to a second tap 92 of the transformer 9 to switch power supplied from the second tap 92, and a second impedance changing unit 6 connected in series with the second switch part 3 to increase impedance at the time of the switching operation of the second switch part 3.

Inventors:

EGUCHI NAOKI (JP)
CHIGIRI TAKESHI (JP)
TAKANO KEI (JP)
MIYAMOTO YASUSHI (JP)

Application Number:

PCT/JP2016/081332

Publication Date:

April 26, 2018

Filing Date:

October 21, 2016

Export Citation:

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Assignee:

TOSHIBA KK (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)

International Classes:

H01F29/04

Foreign References:

JPH11191514A	1999-07-13
JPS5220649B1	1977-06-04
JP2016139701A	2016-08-04

Other References: