Inverter bypass safety switch

Details Inverter bypass safety switch Inverter bypass safety switch

H - Electricity

01

H

H01H 3/02 (2006.01) H01H 19/64 (2006.01) H01H 3/00 (2006.01)

Patent

CA 2179549

An inverter by pass safety switch for rerouting electrical power either through or around AC variable frequency inverter drives during electrical disturbances, thus allowing a motor to continue operation. The switch works in a mechanical fashion, and comprises a contact block containing electrical contacts and cams operably connected to the contacts and mounted on a shaft that can be turned by an operator. The cams are shaped and mounted on the shaft in such a way to provide a desired switching pattern when the shaft is manually rotated.

Interrupteur de sécurité pour onduleur permettant de réacheminer l'énergie électrique dans le circuit d'attaque ou autour de ce circuit d'un convertisseur à fréquence variable pendant les perturbations électriques, ce qui permet à un moteur de continuer à fonctionner. L'interrupteur de sécurité a un mode de fonctionnement mécanique et comporte un bloc à contacts contenant des contacts électriques et des cames reliées aux contacts et montés sur un axe pouvant être commandé par l'opérateur. Les cames sont formées et montées sur l'axe de manière à fournir la configuration de commutation souhaitée lorsque l'axe est commandé manuellement.

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