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stepper device for a hydropower or wind power station and method for operating a stepper device
stepper device for a hydropower or wind power station and method for operating a stepper device
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机译：用于水力发电站或风力发电站的步进设备以及用于操作步进设备的方法
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摘要
A pitch drive device for a wind power or hydroelectric power station having a synchronous motor and a motor operation switchover unit for switching between a normal operation and emergency operation modes. To do so, the synchronous motor is operable in normal operation with three-phase AC and in emergency operation with DC. A method for operating a pitch drive device of this type is also disclosed.
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