H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 7/085 (2006.01) H02H 5/04 (2006.01) H02H 7/08 (2006.01) H02P 1/16 (2006.01)
Patent
CA 2244541
The windings of the electromotor at the starting are connected to the main power through starting resistors for a very short period of time, before being directly connected to the main power source. A voltage is initially established at the terminals of a voltage control resistor provided by at least one of the starting resistors, or a fraction thereof, before the running of the motor will occur and the direct connection of the motor windings to the main power is allowed only when the voltage across the voltage control resistor has decreased with respect to the voltage initially established at the starting of the motor. The temperature difference between the voltage control resistor, or a fraction thereof, and the ambient is also sensed and any new start of the motor will be prevented till the temperature of the control resistor is not adequately decreased.
Gowling Lafleur Henderson Llp
Veco S.r.l.
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