AC Resistance and DC Resistance Relation: Though the contribution of line resistance to series line impedance can be neglected in most cases, it is the main source of line power…
Resistance Welding Machines - Overview and Circuit Diagram: Resistance welding machines incorporates a transformer, suitable electrodes for supplying current to the weld and arrangement for controlling the mechanical pressure, and…
Steady State AC Analysis Articles: Mesh Current Equation: We have earlier discussed meth analysis but have applied it only to resistive circuits. Some of the ac circuits presented in this…
Power and Power Factor Articles: Instantaneous Power Formula: Instantaneous Power Formula – In a purely resistive circuit, all the energy delivered by the source is dissipated in the form of…
Op Amp with Negative Feedback Articles: Op Amp Differential Amplifier Circuit Diagram and its Operation: An ideal difference amplifier amplifies only the difference between two signals; it rejects any common…
Feedback Amplifiers Articles: Voltage Amplifier – Definition and Equivalent Circuit: Voltage amplifiers are intended to amplify an input voltage signal and provide an output voltage signal. The voltage amplifiers is…
Mho Type Distance Relay - Working and Characteristics: Mho relay is a high speed relay and is also known as admittance relay. It is also sometimes called an angle impedance…
Factors to be Considered in Selection of Fuse: In order to ensure that the fuses will correctly and reliably protect any given section or element of an electrical circuit, selection…