April 2016
Intermediate to advanced
384 pages
12h 56m
English
Content preview from Newnes Circuit Calculations Pocket Book
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362 Circuit calculations pocket book
2.5 kV. Calculate: (a) the apparent output power, (b) the line
current.
8 A three-phase star connected alternator has a line voltage of
12 kV. The output of the alternator is 4.2 MVA at a power
factor of 0.93. Calculate: (a) the line to neutral voltage, (b) the
output power, (c) the line current.
9 A three-phase 240-V delta connected induction motor takes a
line current of 12.5 A at a power factor of 0.92. Calculate: (a)
the active power, (b) the apparent power, (c) the current in
each phase.
10 A three-phase alternator when fully loaded has a phase current
of 16 A. The phase voltage is 440 V. Calculate
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