... conditions • They ignore the space m.m.f harmonics, and, in general, consider the current in the machine as sinusoidal in time • They neglect the skin effect in the rotor cage Though the value of the ... (or shunt), may be used for the scope The coil is placed outside the motor frame at the motor end which does not hold the cooling fan Coil axis is concentric with the shaft © 2002 by CRC Press ... load the motor mode and the generator mode Under the motor mode the electric input power, P1e, and the output mechanical power, P2m, are measured P2m is in fact calculated indirectly from the...