A single phase transmission line is delivering 460 kVA load at 10 kV. Its resistance is 6 Ω and inductive reactance is 6 Ω if the load power factor is 0.7 lagging. Determine the Current through the line Answer for part 1 Sending end voltage Answer for part 2 Sending end power factor Answer for part 3 Regulation of transmission line Answer for part 4 Efficiency of transmission line Answer for part 5
Load flow analysis
Load flow analysis is a study or numerical calculation of the power flow of power in steady-state conditions in any electrical system. It is used to determine the flow of power (real and reactive), voltage, or current in a system under any load conditions.
Nodal Matrix
The nodal matrix or simply known as admittance matrix, generally in engineering term it is called Y Matrix or Y bus, since it involve matrices so it is also referred as a n into n order matrix that represents a power system with n number of buses. It shows the buses' nodal admittance in a power system. The Y matrix is rather sparse in actual systems with thousands of buses. In the power system the transmission cables connect each bus to only a few other buses. Also the important data that one needs for have a power flow study is the Y Matrix.
Types of Buses
A bus is a type of system of communication that transfers data between the components inside a computer or between two or more computers. With multiple hardware connections, the earlier buses were parallel electrical wires but the term "bus" is now used for any type of physical arrangement which provides the same type of logical functions similar to the parallel electrical bus. Both parallel and bit connections are used by modern buses. They can be wired either electrical parallel or daisy chain topology or are connected by hubs which are switched same as in the case of Universal Serial Bus or USB.
A single phase transmission line is delivering 460 kVA load at 10 kV. Its resistance is 6 Ω and inductive reactance is 6 Ω if the load power factor is 0.7 lagging.
Determine the
Sending end voltage
Answer for part 2Sending end power factor
Answer for part 3Efficiency of transmission line
Answer for part 5
Part (1):
The current in the transmission line is determined as:
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