A $100-$km$,230-$kV$,60$ Hz$,$ completely transposed three$-$phase line has one ACSR $954$ kcmil conductor per phase and flat horizontal phase spacing with $7$ m between adjacent conductors. The line delivers $260$ MVA at $205$ kV to the receiving end at full load. $($Due to the nature of this problem, do not use rounded intermediate values$$including answers submitted in WebAssign$$in your calculations.$)$

$($a$)$

Using the nominal $$ circuit, calculate the ABCD parameters. $($Assume the three$-$phase line has a positive$-$sequence series impedance of

z $=0\mathrm{.}0701+$ j$0\mathrm{.}508/$km

and a positive$-$sequence shunt admitttance of

y $=$ j$3\mathrm{.}33106$ S$/$km$.$

Enter ABCD parameters in polar form. Enter A and D in per unit, B in $,$ and C in S$.$ Enter the phase angles in degrees.$)$

A$=$ puB$=$C$=$ SD$=$ pu

$($b$)$

Calculate the sending$-$end voltage $($line$-$to$-$line, in kVLL$)$ and percent voltage regulation when the power factor is $0\mathrm{.}9$ lagging.

sending$-$end line$-$to$-$line voltage kVLLpercent voltage regulation $\%$

$($c$)$

Calculate the sending$-$end voltage $($line$-$to$-$line, in kVLL$)$ and percent voltage regulation when the power factor is unity.

sending$-$end line$-$to$-$line voltage kVLLpercent voltage regulation $\%$

$($d$)$

Calculate the sending$-$end voltage $($line$-$to$-$line, in kVLL$)$ and percent voltage regulation when the power factor is $0\mathrm{.}9$ leading.

sending$-$end line$-$to$-$line voltage kVLLpercent voltage regulation $\%$