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Engineering, 23.03.2020 17:23 shmote12

To run at about 3500 rev/ min when the supply is 60 Hz; (b) a pump drive to run at approximately 700 rev/min from a 50 Hz supply; (c) a turbo compressor to run at 8000 rev/min from 60 Hz; (d) a direct-drive turntable for theatre stage set to rotate at approximately 20 rev/min.

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To run at about 3500 rev/ min when the supply is 60 Hz; (b) a pump drive to run at approximately 700...
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