About 40A!
Motor current and wiring and power factor related, if you motor star connection, the current is about 60A, multiplied by the power factor, if you use triangular connection, the current is about 45A, multiplied by the power factor, the power factor are less than 1, 30KW motor should normally be triangular connection, and the final current is generally about 40A!
30KW motor should be used 380V three-phase power supply, then its rated current is about: 30KW/380V/1.73 (square root of 3) = 45.6A.
Can be divided according to the use of: drive motor and control motor.
1) drive motor can be divided into: electric tools (including drilling, polishing, grinding, slotting, cutting, reaming and other tools) with electric motors, home appliances (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, VCRs, video recorders, video disk players, vacuum cleaners, cameras, hairdryers, electric shavers, etc.) with electric motors and other general-purpose small machinery and equipment (including a variety of small machine tools.), Small machinery, medical equipment, electronic instruments, etc.) with electric motors.
2) control motor is divided into: stepper motor and servo motor.