Patent ID: 6509703
Filing Date: 2003-01-21
Classification: H02P

Abstract:
A system for simultaneously starting a plurality of three-phase AC motors with a reduced starting current, said system comprising:a first motor having phase leads of stator windings connected to a power network through a first switching means; a second motor with phase leads of stator windings connected to said power network through a second switching means; said stator windings of said first motor being connected in series with said stator windings of said second motor through a third switching means; said phase leads of said first motor being circularly transposed with respect to the phase leads of said second motor; a fourth switching means connected to both sides of said first motor to connect said stator windings of said first motor in a delta type connection; and a fifth switching means connected to both sides of said second motor to connect said stator windings of said second motor in a delta type connection.