A 60 Hz, single-circuit, three-phase transmission line is 150 mi long. The line is connected to a load of 50 MVA at a logging PF of 0.85 at 138 kV. The line impedance and . Imittance are z= 0.7688477.4 0/mi and y = 4.5239 x 10-64 90* S/mi, respectively. Determine the following: (a) Propagation constant of the line (b) Attenuation constant and phase change constant, per mile, of the line (c) Characteristic impedance of the line (d) SIL of the line (e) Receiving-end current (f) Incident voltage at the sending end (e) Reflected voltage at the sending end

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A 60 Hz, single-circuit, three-phase transmission line is 150 mi long. The line is connected to a load of 50 MVA at a
logging PF of 0.85 at 138 kV. The line impedance and a Imittance are z = 0.7688477.4 Q/mi and y = 4.5239 x 10-62
90* S/mi, respectively. Determine the following:
(a) Propagation constant of the line
(b) Attenuation constant and phase change constant, per mile, of the line
(c) Characteristic impedance of the line
(d) SIL of the line
(e) Receiving-end current
(f) Incident voltage at the sending end
(e) Reflected voltage at the sending end
Transcribed Image Text:A 60 Hz, single-circuit, three-phase transmission line is 150 mi long. The line is connected to a load of 50 MVA at a logging PF of 0.85 at 138 kV. The line impedance and a Imittance are z = 0.7688477.4 Q/mi and y = 4.5239 x 10-62 90* S/mi, respectively. Determine the following: (a) Propagation constant of the line (b) Attenuation constant and phase change constant, per mile, of the line (c) Characteristic impedance of the line (d) SIL of the line (e) Receiving-end current (f) Incident voltage at the sending end (e) Reflected voltage at the sending end
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