three phase electric sircuits problem
In the circuit in the picture, the loads (L) of the lights (lamps) are balanced. Each lamp (L) is set at 500 W and 120 V. Constant resistance (i.e. lamps) only draws the specified current. The three-phase motor is at 5 ?? and 0.8 reverse power factor.
The secondary side of the transformer (bottom of the network) provides voltage between 208 V balanced phases (ll-line line). The motor is 1500 meters from the side (length from the secondary side).
The resistance and reactance values of the line are 0.403 ohms and 0.143 ohms, respectively, for 1000 meters. In this case
a) Calculate the voltage-free phase of the motor.
b) Calculate the phase-to-phase voltage of the motor.
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