The 100 k m , 230 k V , 60 H z 100 k m , 230 k V , 60 H z , three phase line in Problems 4 18 and 4 39 delivers 300 M V A 300 M V A at 218 k V 218 k V to the receiving end at full load Using the nominal circuit, calculate the A B C D A B C D parameters, sending end voltage, and percent voltage regu...

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The 100 k m , 230 k V , 60 H z 100

Question:

The $100 - k m, 230 - k V, 60 - H z$ , three-phase line in Problems 4.18 and 4.39 delivers $300 M V A$ at $218 k V$ to the receiving end at full load. Using the nominal $π$ circuit, calculate the $A B C D$ parameters, sending-end voltage, and percent voltage regulation when the receiving-end power factor is

(a) 0.9 lagging,

(b) unity,

(c) 0.9 leading. Assume a $50^{\circ} C$ conductor temperature to determine the resistance of this line.

Problem 4.18

A $230 - k V, 60 - H z$ , three-phase completely transposed overhead line has one ACSR $954 k c m i l$ conductor per phase and flat horizontal phase spacing, with $7 m$ between adjacent conductors. Determine the inductance in $H / m$ and the inductive reactance in $Ω / k m$ .

Problem 4.39

Calculate the capacitance-to-neutral in $F / m$ and the admittance-to-neutral in $S / k m$ for the three-phase line in Problem 4.18. Also calculate the linecharging current in $k A /$ phase if the line is $110 k m$ in length and is operated at $230 k V$ . Neglect the effect of the earth plane.