METODA UNTUK MELINDUNGI TERHADAP KEGAGALAN ALAT PEMUTUS ARUS LISTRIK

摘要

The invention relates to a method of protection of failure of a circuit breaker is provided with contacts which can move from a closed position to an open position and vice versa and equipped with a protection device comprising a device for detecting a defect causing the function of an electromagnetic coil for opening actuating a control device of the circuit breaker contacts, of the indicating contacts of the position of a control device being tilted as soon as the displacement of the circuit breaker contacts. & br / according to the invention, in the event of detection of a fault, a time delay (7) is generated after swinging of the indicating contacts, at the end of which it is verified if the fault current is cancelled and if it is not, an alarm is generated.