If we consider any two terminals of an active network, obviously there would be a voltage across the terminals and current through the terminals. Sometimes it requires to transform some or all of the voltage sources of the network to current source and vise versa. It may normally be done by combining impedances in series and parallel. The main step of network analysis is to simplify comparatively complex network to its simplified form. The cotree is a subgraph which contains all those branches which are not included in a tree. Hence a tree can also be referred to as a set of twigs. The branches of a tree are referred to as twigs. If the graph has n number of nodes, the tree will have (n – 1) number of branches. The tree is a subgraph which contains all nodes of the graph but does not form any closed circuit. The figure – 5 below shows the oriented topological graph of the network in figure – 4.ĭefinition of Terms used in Network Analysis Branch The above figure – 4 shown an electrical network with both voltage source and current source. The voltage source is removed by replacing it with a short circuit and the current source is removed by replacing it with an open circuit. When an active network is represented as a passive network through a graph by removing the voltage and current sources then the graph is known as the oriented topological graph of the network. The figure – 3 below shows the oriented graph of the above network in figure – 1. When we draw a graph of a network with the direction of current (the direction may be arbitrary) in each of the branches, the graph is called oriented graph of the network. The direction of the current in a graph can be considered arbitrarily. The direction of current through the element is represented by arrowhead drawn on the branch. The point where two or more branches meet is called node of the network. The line represents the circuit element is called the branch of a network. The figure – 2 below shows the graph of the above network in figure – 1. When we replace all the circuit elements of an electrical network by hand-drawn lines, then the figure is known as the graph of the network. In short, we can say, an electrical network is the combination of different circuit elements and the network analysis or circuit analysis is the technique to determine the different electrical parameters of those circuit elements. Current, voltage, resistance, impedance, reactance, inductance, capacitance, frequency, electric power, electrical energy etc are the different electrical parameters we determine by network analysis. The circuit elements are resistors, capacitors, inductors, voltage sources, current sources etc. The circuit elements in a network can be connected in different manners, some of them are in series and some of them in parallel. An electrical circuit or network can be complicated too and in a complicated network, we have to apply different methods to simplify the network for determining the electrical parameters. It does not store any personal data.Network Analysis is a process by which we can calculate different electrical parameters of a circuit element connected in an electrical network. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.
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