Pyromagnetic release

A technology of thermal magnetic release and tripping, which is applied in the direction of protection switch operation/release mechanism, etc. It can solve the problems of unreliable action, complex structure, cumbersome tripping process, etc., and achieve the effect of reliable action and simple tripping process
CN101299402AActive Publication Date: 2008-11-05CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
Publication Date
2008-11-05

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Abstract

A thermomagnetic releaser is arranged on the plastic case breaker, for directly striking the plastic case breaker operation mechanism locking device, which includes a base, a draw rod arranged on the base and a group of thermomagnetic protective device mounted on the base, characterized by also including a pushing rod slideably mounted on the base for causing the breaker operation locking device to act relative to the breaker operation locking device. The invention has the advantages of simple buckling process with no middle transistion tache, and no mistake indication is provided in the breaker thermomagnetic releaser with the thermomagnetic fault indication mechanism to ensure the action reliable.
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Description

technical field

[0001] The invention relates to a thermal magnetic tripper, which is arranged on a molded case circuit breaker and is used for directly hitting the tripper of the locking device of the operating mechanism of the molded case circuit breaker. Background technique

[0002] Molded case circuit breakers are suitable for distribution networks with AC 50Hz, insulation voltage of 800V, and rated operating current of 690A and below. They are used to distribute electric energy and protect lines, power supplies and electrical equipment. The circuit breaker has overload, short circuit and undervoltage protection functions to avoid damage to lines and power supply equipment.

[0003] The protection functions of molded case circuit breakers mainly include thermal overload protection, short circuit protection, time delay protection, electronic protection and leakage protection, etc. When implementing protection, circuit breakers, as traditional mechanical structures, gener...

Claims

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