Problem $5\mathrm{.}8$:

A $3\frac{O}{,}60Hz,765KV$ TL is composed of $4$ conductors per phase with flat horizontal spacing of $14$ m $.$ the conductors have a diameter of $3\mathrm{.}625cm$&$GMR$ of $1\mathrm{.}439$ cm $.$ The bundle spacing is $45$ cm $.$ The line is $400$ Km long and assumed lossless.

a$)$ Determine $,Z_c,,$ SIL & ABCD constants.

b$)$ The line delivers $2000$ MVA @ $pf=0\mathrm{.}8$ lagging at $735$ KV $.$ Determine the sending end quantities & $\%$VR$.$

c$)$ Determine the receiving end quantities when $1920$ MW & $600$ MVAR are being transmitted at $765$ KV at the sending end.

d$)$ The line is terminated in a purely resistive load. Determine the sending end quantities and $\%$VR when the receiving end load is $264\mathrm{.}5$ @ $735$ KV $.$