The electrical power supply system of a particular country is made of the following. Draw a single line diagram of the electrical power supply system of the country based on the information below using any computer-aided software. Power supply from an infinite bus bar S connected to bus bar A, through a circuit breaker connected between isolators and a three-phase delta/star solidly earthed transformer T1.Power supply source from a generator Gl connected to bus bar B through a circuit breaker connected between isolators, and a three- phase delta/star solidly earthed transformer T2. power supply sources from two generators G2 and G3. Each of the generators are connected to a reactor. Furthermore, each of the generators connected to a common bus bar C through a circuit breaker connected between isolators and a three-phase star/star solidly earthed transformer T3 and T4 respectively. bus bar F to bus bar A by means of two isolators, one at each end of transmission line L6; bus bar A to bus bar E by means of two isolators, one at each end of transmission line L7.
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.
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