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Answers Please. Electrical Technology.

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1. A load of 2.5kW takes a current of 12 Amp from a 230 Volt supply. Calculate the power factor.


2. Three single phase loads are to be connected to a three phase supply. All at unity power factor. The loads are,


i, 60 Amp.


ii, 50 Amp.


iii, 40 Amp.


By any method determine the neutral current.


Z.
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    Just wanted to say thanks all above for the enjoyable exercise; I've been playing with programming in Python lately and (once I'd realised I needed angles in radians not degrees...) it was satisfyingly tidy to use Millman's Theorem on the phasors directly. ?
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    Just wanted to say thanks all above for the enjoyable exercise; I've been playing with programming in Python lately and (once I'd realised I needed angles in radians not degrees...) it was satisfyingly tidy to use Millman's Theorem on the phasors directly. ?
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