GAS CIRCUIT BREAKER - MITSUBISHI ELECTRIC CORP

Title:

GAS CIRCUIT BREAKER

Document Type and Number:

WIPO Patent Application WO/2020/084984

Kind Code:

A1

Abstract:

This gas circuit breaker (100) is provided with: a fixed electrode (1); a movable electrode (2) capable of coming into contact with and separating from the fixed electrode (1) by moving along the axial line of the fixed electrode (1); a movable-side case (3) interlocked with the movable electrode (2); a piston (4) which forms a mechanical puffer chamber (Mp) with the movable-side case (3); a cylinder section (8) interlocked with the movable electrode (2) and positioned in series with the movable-side case (3) in the axial direction; and a nozzle (7) which forms a first heat puffer chamber (Tp) with a cylinder part (8). A first suction/discharge port (Mnu) for sucking an insulating gas into the mechanical puffer chamber (Mp) and discharging the insulating gas from the inside of the mechanical puffer chamber (Mp) is formed in the movable-side case (3). A suction port (7n) for sucking the insulating gas into the first heat puffer chamber (Tp) and a discharge port (7u) for discharging the insulating gas from the inside of the first heat puffer chamber (Tp) toward a position between the fixed electrode (1) and the movable electrode (2) are formed in the nozzle (7).

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JP2003297198	PUFFER TYPE GAS-BLAST CIRCUIT BREAKER
JPS5836533	【考案の名称】パツフア形ガスしや断器

Inventors:

SATO MOTOHIRO (JP)
YAMADA DAISAKU (JP)
NAKAMURA YASUNORI (JP)
NAKA SHIMPEI (JP)

Application Number:

PCT/JP2019/037360

Publication Date:

April 30, 2020

Filing Date:

September 24, 2019

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

H01H33/915

Foreign References:

JPS61118919A	1986-06-06
JP2012054097A	2012-03-15
JPH04286821A	1992-10-12
JPH04284319A	1992-10-08
JP2003297200A	2003-10-17

Other References: