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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 $10ARMS$ at $60Hz$. Assume the d-axis is chosen to be aligned with the stator current space vector. The effective per-phase magnetizing inductance $L_{m}$ is measured to be $6.85mH$, and the stator per-phase leakage inductance $L_{ls}=2mH$, and the rotor per phase leakage inductance $L_{lr}=1$ $mH$ What is the rotor d-axis winding flux linkage $λ_{rd}$ (Amp-Henries)? (Answer to 4 decimal places.)

==> 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: