| 摘要 |
The arrangement as overload protection for the mains voltage (U) comprises an electric motor ( 1 ), a compression unit having a compressor ( 2 ), a mains voltage-monitoring unit ( 3 ), a device for reducing the load on the motor ( 1 ) and a control arrangement ( 4 ). The control arrangement ( 4 ) is connected to the mains voltage-monitoring unit ( 3 ) and to the device for reducing the load on the motor ( 1 ) such that the motor ( 1 ) is disconnected from the load as soon as the mains voltage (U) falls below a predetermined, first threshold value. The load on the motor ( 1 ) comes from the pressure difference between the inlet (E) and the outlet (A) of the compressor ( 2 ), which is driven by the motor ( 1 ).
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