Question 3 a) The conductors of a three-phase transmission line are arranged in the form of an equilateral triangle with sides of 6 meters each. If the solid conductors are 12.5 mm in diameter and the line is 25 km long, what is its inductance per phase? b) The per-phase parameters for a 50 Hz, 200 km long transmission line are R = 2.07 02, L = 310.8 mH, and C = 1.477 uF. The line supplies a 100 MW, wye connected load at 215 kV (line to line) and 0.9 power factor lagging. (i) Determine the ABCD constants for the nominal circuit of the transmission line (use medium length line model). (ii) Calculate the sending end voltage by treating the line as a two-port network.
Short Transmission Line
A short transmission line is a transmission line that has a length less than 80 kilometers, an operating voltage level of less than 20 kV, and zero capacitance effect.
Power Flow Analysis
Power flow analysis is a topic in power engineering. It is the flow of electric power in a system. The power flow analysis is preliminary used for the various components of Alternating Current (AC) power, such as the voltage, current, real power, reactive power, and voltage angles under given load conditions and is often known as a load flow study or load flow analysis.
Complex Form
A power system is defined as the connection or network of the various components that convert the non-electrical energy into the electric form and supply the electric form of energy from the source to the load. The power system is an important parameter in power engineering and the electrical engineering profession. The powers in the power system are primarily categorized into two types- active power and reactive power.
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