Creepage tripping mechanism of creepage breaker

A leakage tripping device of earth leakage circuit breaker of the utility solves problem of unreliable circuit break resulting from small suction of end surface of magnetic pole for stop iron-free solenoid type electromagnetic system in leakage tripping coil. The utility is mainly composed of zero s...

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Bibliographic Details
Main Authors GONG SHENGPEI, JIN YING, LIN HAIOU, LU LI, WU HUI
Format Patent
LanguageChinese
English
Published 08.04.2009
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:A leakage tripping device of earth leakage circuit breaker of the utility solves problem of unreliable circuit break resulting from small suction of end surface of magnetic pole for stop iron-free solenoid type electromagnetic system in leakage tripping coil. The utility is mainly composed of zero sequence current transformer, tripping rod, leakage tripping coil, electronic module board. The leakage tripping coil comprises: magnetic yoke, winding closely butting the magnetic yoke, movable iron core positioned in middle of winding, spring between movable iron core and magnetic yoke; static iron core connecting with magnetic yoke. The leakage tripping coil of tripping device of leakage circuit breaker adopts a static iron core on magnetic yoke serving as stop iron of solenoid electromagnetic system to increase suction of magnetic pole end surface, increases reliability of leakage tripping action, integrally promotes action reliability of leakage circuit breaker and use safety.
Bibliography:Application Number: CN2008260052U