DEVICE FOR THE AUTOMATIC ÷ COSINE CORRECTION AND THE RESPECTIVE REDUCTION OF THE STARTING CURRENT IN ELEVATORS AND ELECTRIC MACHINES IN GENERAL

摘要

The herein disclosed device provides via a printed circuit directly connected to the starting system of the elevator the possibility of automatically correcting the ÷ cosine and reducing respectively the starting current of elevators; in parallel, in the occurrence of electric power failure, said device protects technicians from electrocution by automatic discharging of condensers.