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.


ANSWER: P.F. = 2500/230 X 12.


                             = 0.906


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.


ANSWER = 16.5 Amps.


Answers & questions supplied from a City & Guilds and I.E.T. joint publication.


Z.

Zoomup:

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


ANSWER: P.F. = 2500/230 X 12.


                             = 0.906


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.


ANSWER = 16.5 Amps.


Answers & questions supplied from a City & Guilds and I.E.T. joint publication.


Z.