تم الحل ✓
categoryهندسة كهربائية
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
=
1. (40 points) A balanced-A load consisting of pure resistances of Z1
in parallel with a balanced-Y load having phase impedances of Z2 =
(i)
(ii)
(iii)
152 per phase is
8+ j6 N.
Convert the balanced-A load into the balanced-Y load and draw the circuit
diagram;
Identical impedances of ZL = 2 + j5 2 are in each of the three lines connecting
the combined loads to a 110-volt (line-to-line voltage) three phase supply. Find
the current drawn from the supply Ia (ampere) and the line-to-line voltage (volt)
at the combined loads.
=
Use the base values of Spase,1 10 kVA and Vbase, LN = 100 volts, find the
current drawn from the supply Ia (per unit) and the line-to-line voltage (per unit)
at the combined loads.
a
Ia ->
ZL
b
Ib ->
ZL
с
Ic ->
ZL
Z1
Z1
n
Z2
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