DIRECT-CURRENT CIRCUIT BREAKER - TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP

Title:

DIRECT-CURRENT CIRCUIT BREAKER

Document Type and Number:

WIPO Patent Application WO/2020/121525

Kind Code:

A1

Abstract:

A direct-current circuit breaker according to an embodiment comprises a mechanical breaking part, an arrester, and a commutation device. The mechanical breaking part has at least one mechanical breaking unit. The at least one mechanical breaking unit has at least one unitized breaking part. Each of the at least one unitized breaking part has a mechanical contact section. All of the at least one unitized breaking part are connected in series to form a mechanical contact module. Both ends of the mechanical contact module are connected to a direct-current transmission system. The arrester is connected in parallel with the mechanical contact module. The commutation device has a commutation circuit. The commutation circuit is formed by connecting a reactor, a capacitor, and a closing device. The commutation circuit is connected in parallel with the mechanical contact module. The closing device is a high-speed closing device.

Inventors:

KANAYA KAZUHISA (JP)
OHDA YOSHIAKI (JP)
ISHIGURO TAKAHIRO (JP)

Application Number:

PCT/JP2018/046148

Publication Date:

June 18, 2020

Filing Date:

December 14, 2018

Export Citation:

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Assignee:

TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)

International Classes:

H01H33/59

Domestic Patent References:

WO2015166600A1	2015-11-05
WO2016056274A1	2016-04-14
WO2017134825A1	2017-08-10

Foreign References:

JP2016187275A	2016-10-27
JP2015185477A	2015-10-22
JP2012190704A	2012-10-04
JPS58144508A	1983-08-27
JP2016127744A	2016-07-11
JPS56126223A	1981-10-03

Other References: