A
Can the negative sequence impedance of the motor be lesser than locked rotor impedance of the motor? More importantly, can the sum of positive and negative sequence currents in the rotor during unbalanced supply be greater than locked rotor current for "terminal voltage of lesser than 1 pu".
I ask this because I am interested to know if the hot stall time is still a good indicator of minimum time for motor damage under severe voltage unbalance?
I ask this because I am interested to know if the hot stall time is still a good indicator of minimum time for motor damage under severe voltage unbalance?