Question

Find the characteristics of the load at the sending end and the efficiency of a three-phase transmission line 160 km long delivering 15 MVA load at 110 kV, 50 Hz, and 0.9 power factor (lagging) having inductance 1.356 mH/km per phase, capacitance 0.0085 uF/km per phase, and resistance 40 ohms. Use nominal T-method. Ans. Is = 70.3 20.8° Amp, Vsa.LD = 117.6 29.2 kV, power factor = 0.9898, n = 95.3%

Name: find the characteristics of the load at the sending end and the efficiency of a three phase transmission line 160 km long delivering 15 mva load at 110 kv 50 hz and 09 power factor lagging h 22858
Uploaded: 2023-01-23T17:07:30-08:00
Duration: 2 min 41 s
Channel: Sri K
Description: find the characteristics of the load at the sending end and the efficiency of a three phase transmission line 160 km long delivering 15 mva load at 110 kv 50 hz and 09 power factor lagging h 22858

          Find the characteristics of the load at the sending end and the efficiency of a three-phase transmission line 160 km long delivering 15 MVA load at 110 kV, 50 Hz, and 0.9 power factor (lagging) having inductance 1.356 mH/km per phase, capacitance 0.0085 uF/km per phase, and resistance 40 ohms. Use nominal T-method.
Ans. Is = 70.3 20.8° Amp, Vsa.LD = 117.6 29.2 kV, power factor = 0.9898, n = 95.3%

Added by Olivia B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

01/23/2023

Step 1

Calculate the sending end current (Is): Is = S / (√3 * V) Is = 15 MVA / (√3 * 110 kV) Is = 70.3∠20.8° Amp Show more…

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Find the characteristics of the load at the sending end and the efficiency of a three-phase transmission line 160 km long delivering 15 MVA load at 110 kV, 50 Hz, and 0.9 power factor (lagging) having inductance 1.356 mH/km per phase, capacitance 0.0085 uF/km per phase, and resistance 40 ohms. Use nominal T-method. Ans. Is = 70.3 20.8° Amp, Vsa.LD = 117.6 29.2 kV, power factor = 0.9898, n = 95.3%