Question

A wye connected three-phase source is delivering a line voltage of 480 V at a line current of 25 amperes.

Find

a) the phase voltage

b) the phase current

c) the line voltage

d) the line current

e) the total power delivered.

Answer #1

A balanced wye-connected three-phase source has line-to-neutral
voltages of 400 V rms.
- Find the rms line-to-line voltage magnitude.
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- If this source is applied to a wye-connected load composed of
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Taking as a reference of line voltages V1= V∠0º, and a direct
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f) simulation for this circuit on the
MULTISIM

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a)Calculate the input current and the input power.
b)Calculate the output mechanical power and torque and motor
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c)Calculate the starting current of this motor and compare it
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