Parallel Operation of a Transformer

The Transformer is said to be in Parallel Operation when its primary winding is connected to a common voltage supply, and the secondary winding is connected to a common load. The connection diagram of the parallel operation of a transformer is shown in the figure below. The parallel operation of a transformer has some advantages likes …

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Polyphase System

Polyphase System is a combination of two or more than two voltages having same magnitude and frequency but displaced from each other by an equal electrical angle. As poly means, many (more than one) and phase means windings or circuits. Each of them has a single alternating voltage of the same magnitude and frequency. The …

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Parallel Resonance

Parallel Resonance means when the circuit current is in phase with the applied voltage of an AC circuit containing an inductor and a capacitor connected together in parallel. Let us understand the Parallel Resonance with the help of a circuit diagram shown below: Consider an Inductor of L Henry having some resistance of R ohms …

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Admittance Method

Admittance method is used for solving parallel AC circuits. The admittance shows the reliability of the electrical circuit to allow the electric current to pass through it. First of all, we must know the meanings of some terms used in the Admittance Method. Admittance The reciprocal of the impedance of an AC circuit is known …

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Voltage Source and Current Source

A Source is a device which converts mechanical, chemical, thermal or some other form of energy into electrical energy. In other words, the source is an active network element meant for generating electrical energy. The various types of sources available in the electrical network are voltage source and current sources. A voltage source has a …

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Nodal Voltage Analysis Method

The Nodal Voltage Analysis is a method to solve the electrical network. It is used where it is essential to compute all branch currents.The nodal voltage analysis method determines the voltage and current by using the nodes of the circuit. A node is a terminal or connection of more than two elements. The nodal voltage …

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