The present disclosure describes an elevator safety apparatus. The safety apparatus comprises an elevator hoisting motor for driving an elevator car in elevator shaft between landing floors, switches connected between all the phases of the motor for causing a short circuit between the phases, and a monitoring device configured for monitoring presence of the short circuit at all said motor phases.
ELEVATOR SAFETY APPARATUS AND ELEVATOR WITH SAID SAFETY APPARATUS
Patent
Elektronische Ressource
ELEVATOR SAFETY APPARATUS AND ELEVATOR WITH SAID SAFETY APPARATUS
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