GearsNsparks
Mechanical
- Jun 24, 2009
- 49
Howdy,
If a 20HP NEMA B AC induction motor has a locked rotor torque of 200% of full load torque, would a typical VFD be capable of developing that locked rotor torque condition at start up? The current is 600% of full load current at start up according to the speed vs current curve chart.
Is the start up torque normally limited by the VFD as opposed to the motor?
Thanks for any help.
If a 20HP NEMA B AC induction motor has a locked rotor torque of 200% of full load torque, would a typical VFD be capable of developing that locked rotor torque condition at start up? The current is 600% of full load current at start up according to the speed vs current curve chart.
Is the start up torque normally limited by the VFD as opposed to the motor?
Thanks for any help.