H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 7/085 (2006.01) H01H 47/00 (2006.01)
Patent
CA 2333483
A first and a second line (L1, L2) conduct the input direct voltage (Ue) to the load. A fuse (S) is connected in series in the first line. The switching contact (K11) of a first relay (K1) is also connected in series in the first line and is opened during a disconnecting operation. The switching contact (K21) of a second relay (K2) is connected in parallel between the first and second line after the first relay and is closed during a disconnecting operation, after the first relay has been opened. The inventive device is very fault-tolerant, even with usual commercial relays.
Une première et une seconde lignes (L1, L2) acheminent la tension continue d'entrée (Ue) jusqu'à la charge. Un fusible de sécurité (S) est couplé en série dans la première ligne. Le contact de commutation (K11) d'un premier relais (K1) est couplé en série dans la première ligne et est ouvert en cas de déconnexion. Le contact de commutation (K21) d'un second relais (K2) est couplé en parallèle après le premier relais, entre la première et la seconde lignes et est fermé en cas de déconnexion, suite à l'ouverture du premier relais. Ce dispositif fonctionne extrêmement bien, même lorsqu'il est utilisé avec des relais de type commercial.
Aktiengesellschaft Siemens
Smart & Biggar
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