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AssigneeSchneider Electric Industries SAS
InventorsChristophe DURAND, Delcho PENKOV
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The invention relates to a method of starting an electric motor (10) powered by an alternating power supply voltage, said method consisting of supplying current to the motor (10) with a delay tret, during each period of the power supply voltage. The starting method comprises a first sequence in which the following steps are carried out during each nth period of the power supply voltage, where n is an integer number greater than 0: a) determine the value of a variation of a resistance of the electric motor during the previous n periods of the power supply voltage; b) compare said value of the variation of the determined motor resistance with a first threshold resistance value; c) if the value of the variation of the motor resistance is less than the first threshold value, reduce tret. The invention also relates to a starter device and a computer program.
A starting Method of an electric motor powered by an alternating power supply voltage of an alternating power supply circuit, the starting method consisting of supplying current to the electric motor during each voltage supply period with a delay tret, the starting method comprising a first sequence in which the following steps are carried out in each nth period of the alternating power supply voltage, where n is an integer number greater than 0:
Dependencies are inferred from the claim text.