题目内容
The relationship between rotor current and slip of a squirrel cage induction motor is( ).
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For a 50Hz 3-phase induction motor, its nominal speed is 730r/min,then its nominal slips and number of pole pairs is ( ) respectively.
For a 2-pole, 50Hz 3-phase induction motor, is the nominal slip sN=0.04,then the nominal rotating speed is ( ).
The nominal power factor of a 3-phase induction motor is 0.85, then the power factor under light load condition can be ( ).
The nominal voltage UN and nominal current IN on the nameplate of a 3-phase asynchronous motor refers to ( ) respectively.
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