Mining kilovolt-level double-pole single-breakpoint air isolation reversing switch

The utility model discloses a mining kilovolt-level double-pole single-breakpoint air isolation reversing switch, and relates to an electrical element. A double-pole single-breakpoint moving contact and grid type magnetic quenching devices are adopted. Working current switching-on/off capability rea...

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Bibliographic Details
Main Authors YUE FULIANG, HUANG AIMIAO
Format Patent
LanguageChinese
English
Published 16.01.2013
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model discloses a mining kilovolt-level double-pole single-breakpoint air isolation reversing switch, and relates to an electrical element. A double-pole single-breakpoint moving contact and grid type magnetic quenching devices are adopted. Working current switching-on/off capability reaches more than 630A. The grid type magnetic quenching devices are fixed in a transverse isolation groove of an upper cover. The transverse isolation groove of the upper cover and a corresponding transverse isolation groove of an upper cavity of an insulating seat form a closed space in which the grid type magnetic quenching devices are positioned. Each grid type magnetic quenching device comprises a cover, arc quenching grids, a run-on plate, a magnetic blowout coil, a concentrating flux core and a concentrating flux plate. The arc root of an opening arc is shifted to the run-on plates which have the same electric level under the action of an electric field, the blowout coils which are connected with the run-on pla
Bibliography:Application Number: CN20122254588U