Why doesn’t the inner tank rotate after the centrifuge circuit is turned on?
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For a centrifugal dehydrator, why doesn’t the inner tank rotate after the circuit is powered on?
Coupling connection? Damaged keyway key? Bolt cut? Motor?
Are you creating exam questions? I’m not interested in such exam questions. If it really happened on site, the first step is to turn the motor manually. If that’s not possible, check the current flow; if there is no ammeter, use a portable clamp ammeter to determine whether current is present. Measure the current in all three phases, with the aim of identifying any issues such as single-phase problems, ground faults, or open/closed circuits. Then carry out the checks mentioned above.