A balanced load of 30MW is supplied at 132 kV, 50Hz and 0.85 p.f. lagging by means of a transmission line. The series impedance of a single conductor is (20+j 52) ohms and the total phase-neutral admittance is 315 micro mho. Shunt leakage may be neglected. Using the nominal T and π approximation, calculate the line voltage at the sending end of the line. If the load is removed and the sending end voltage remains constant, find the percentage rise in the voltage at the receiving end.
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.
A balanced load of 30MW is supplied at 132 kV, 50Hz and 0.85 p.f. lagging by
means of a transmission line. The series impedance of a single conductor is (20+j
52) ohms and the total phase-neutral admittance is 315 micro mho. Shunt leakage
may be neglected. Using the nominal T and π approximation, calculate the line
voltage at the sending end of the line. If the load is removed and the sending end
voltage remains constant, find the percentage rise in the voltage at the receiving
end.
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