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(Solved): An induction machine is operating in AC steady state, under no load (hint: th ...
An induction machine is operating in AC steady state, under no load (hint: the rotor current is approximately zero), and the phase currents are measured to be at . Assume the d-axis is chosen to be aligned with the stator current space vector. The effective per-phase magnetizing inductance is measured to be , and the stator per-phase leakage inductance , and the rotor per phase leakage inductance What is the rotor d-axis winding flux linkage (Amp-Henries)? (Answer to 4 decimal places.)
Expert Answer
==> Given Information We are given the following information:The induction machine is operating in AC steady state.The machine is under no-load conditions, which means the rotor current is approximately zero.The phase currents measured on the stator side are 10 A RMS at 60 Hz.The effective per-phase magnetizing inductance is Lm = 6.85 mH.The stator per-phase leakage inductance is Ls = 2 mH.The rotor per-phase leakage inductance is Lr = 1 mH.Calculating Peak Stator Phase Current :To determine the peak value of the stator phase current, we multiply the RMS value by the square root of 2. In this case, the peak value is calculated as follows: