A (medium) single phase transmission line (Islamabad to Kashmir) 100 km long has the following constants : Resistance/km/phase = 0·15Ω Inductive reactance/km/phase = 0·377 Ω Capacitive reactance/km/phase = 31·87 Ω Receiving end line voltage = 132 kV Assuming that the total capacitance of the line is localized at the receiving end alone, determine : sending end current line value of sending end voltage voltage regulation sending end power factor The line is delivering 72 MW at 0·8 p.f. lagging
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 (medium) single phase transmission line (Islamabad to Kashmir) 100 km long has the following constants :
Resistance/km/phase = 0·15Ω
Inductive reactance/km/phase = 0·377 Ω
Capacitive reactance/km/phase = 31·87 Ω
Receiving end line voltage = 132 kV
Assuming that the total capacitance of the line is localized at the receiving end alone, determine :
- sending end current
- line value of sending end voltage
- voltage regulation
- sending end power factor
The line is delivering 72 MW at 0·8 p.f. lagging
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