Arc extinction system of CJ20-63 type alternating current contactor

The utility model relates to an arc extinguishing system of a CJ20-63 type alternating current contactor. The arc extinguishing system comprises a moving contact, a fixed contact and an arc extinguishing chamber, the arc extinguishing chamber comprises an arc tight plastic casing body, and at least...

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Bibliographic Details
Main Authors HUANG ZHANGWU, DONG RENYONG, GAO WENLE
Format Patent
LanguageChinese
English
Published 06.02.2008
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model relates to an arc extinguishing system of a CJ20-63 type alternating current contactor. The arc extinguishing system comprises a moving contact, a fixed contact and an arc extinguishing chamber, the arc extinguishing chamber comprises an arc tight plastic casing body, and at least an arc extinguishing grid piece fixedly arranged in the casing body, the arc extinguishing chamber also comprises at least an arc guiding grid piece arranged in the casing body, and the basic shape of the arc guiding grid piece is the polygonal line shape. The utility model has the advantages that the arc over distance is reduced, the arc extinguishing effect is improved, and thus the electric service life is prolonged.
Bibliography:Application Number: CN20062175774U