Two wattmeters (W1 & W2) are connected as shown below to measure the total power for a balanced delta-connected load. The load is supplied by a three-phase, 200 V balanced supply with phase sequence as R-Y-B. The load impedance per phase is (14 - j14) Ω. Calculate the: (a) readings of the wattmeters (b) the line and phase currents, (c) power factor, (d) total real power, total reactive power and total apparent power

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Two wattmeters (W1 & W2) are connected as shown below to measure the total power for a
balanced delta-connected load. The load is supplied by a three-phase, 200 V balanced supply
with phase sequence as R-Y-B. The load impedance per phase is (14 - j14) Ω.
Calculate the:

(a) readings of the wattmeters
(b) the line and phase currents,
(c) power factor,
(d) total real power, total reactive power and total apparent power

R
Y.
B
W₁
vo
T
000000
000000
00
W₂
IR
Xc = 14 Q2/R=1492
Hmm
IRY Z₁
Iy
WHI
Z₁
➜ IB
IBR
IYB 11
←
Z₁
IRY
Transcribed Image Text:R Y. B W₁ vo T 000000 000000 00 W₂ IR Xc = 14 Q2/R=1492 Hmm IRY Z₁ Iy WHI Z₁ ➜ IB IBR IYB 11 ← Z₁ IRY
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