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Electrical power supply unit of a pump, a vacuum has bearings magnetic, with auxiliary power supply of the bearings in the case of interruption of the current of the sector.
Electrical power supply unit of a pump, a vacuum has bearings magnetic, with auxiliary power supply of the bearings in the case of interruption of the current of the sector.
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机译：泵的电源装置，真空装置具有磁性轴承，在扇形电流中断的情况下，通过轴承的辅助电源供电。
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摘要
Power supply system for a vacuum pump (1) comprising a rotor supported by magnetic bearings (3) and driven by an electronic motor whose rotor, integral with the rotor of the pump, is of the type comprising magnetic poles, the stator (2) of the electric drive motor, as well as the magnetic bearings (3) being powered by the mains (10), by way of electronic power circuits (7, 11) and control circuits (4, 6, 12), characterised in that it further comprises an auxiliary power circuit (14) whose output is connected to the circuit for powering the said magnetic bearings and which receives as input its energy supply, by way of a switch (15) closing automatically in the event of a mains power failure, the said drive motor operating as an alternator. IMAGE
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