Q3:- The figure below illustrate the single line diagram of power system. 1) Draw the per unit zero, positive and negative sequence networks (150 MVA and 11kV) base. 2) Reduce the sequence networks to their thevenin equivalents as viewed from bus 2 (take VF =1.05 pu) T.L₁ T₁ T₂ G₂ G₁ ele ele T.L₂ Item Rating Rating X₁ (pu) X₂ (pu) voltage MVA G1 13.2 150 0.15 0.17 G2 13.2 150 0.2 0.2 T1 13.2/138 150 0.1 0.1 T2 138/13.2 150 0.1 0.1 Take X₁=X₂-30 2 and X0= 60 2 for the transmission lines. Xo (pu) 0.05 0.1 0.1 0.1 Xn (pu) 0.05
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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