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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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  • Former Community Member
    0 Former Community Member
    How about drawing out the phasor diagram for the three currents on a piece of graph paper and use a ruler to measure the resultant neutral current to be around 17A at 30 degrees lagging L1? Will it be sufficient to answer the question?
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  • Former Community Member
    0 Former Community Member
    How about drawing out the phasor diagram for the three currents on a piece of graph paper and use a ruler to measure the resultant neutral current to be around 17A at 30 degrees lagging L1? Will it be sufficient to answer the question?
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