A 200-km, 230-kV, 60-Hz, three-phase line has a positive-sequence series impedance z = 0.08 + j 0.48 Ω /km and a positive-sequence shunt admittance y = j 3.33 × 10 − 6 S/km . At full load, the line delivers 250 MW at 0.99 p.f. lagging and at 220 k V. Using the nominal π circuit, calculate: (a) the ABCD parameters, (b) the sending-end voltage and current, and (c) the percent voltage regulation.
A 200-km, 230-kV, 60-Hz, three-phase line has a positive-sequence series impedance z = 0.08 + j 0.48 Ω /km and a positive-sequence shunt admittance y = j 3.33 × 10 − 6 S/km . At full load, the line delivers 250 MW at 0.99 p.f. lagging and at 220 k V. Using the nominal π circuit, calculate: (a) the ABCD parameters, (b) the sending-end voltage and current, and (c) the percent voltage regulation.
A 200-km, 230-kV, 60-Hz, three-phase line has a positive-sequence series impedance
z
=
0.08
+
j
0.48
Ω
/km
and a positive-sequence shunt admittance
y
=
j
3.33
×
10
−
6
S/km
.
At full load, the line delivers 250 MW at 0.99 p.f. lagging and at 220 k V. Using the nominal
π
circuit, calculate: (a) the ABCD parameters, (b) the sending-end voltage and current, and (c) the percent voltage regulation.
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