Voltage Balance Differential Relay: In this voltage balance differential relay arrangement, two similar current transformers are connected at either end of the system element under protection (such as a feeder)…
High Frequency Power Supply Working Principle: The high frequency power supply for coreless induction furnace is usually obtained from ordinary supply system and its frequency is converted to higher value…
High Pressure Mercury Vapour Lamp - Construction and Working: The extensive use of the mercury vapour lamp depends entirely upon the versatility of the mercury vapour as regards pressure, temperature,…
Voltage Control Interview Questions and Answers: 1. Why is it necessary to keep the receiving-end voltage constant within specified limits ? Ans. For satisfactory operation of equipment/machinery supplied by the…
Protection against Over voltages due to Lightning Interview Questions and Answers: 1. What is meant by voltage surge ? Ans. By voltage surge is meant any sudden excessive rise in…
Current to Voltage Converter Circuit: A device that produces a voltage proportional to input signal current is called a Current to Voltage Converter Circuit. The circuit arrangement is shown in…
Voltage to Current Converter Circuit: Occasionally in industrial electronics, it is necessary to provide a current proportional to certain voltage, even though the load impedance may vary. A circuit which…
RC High Pass Circuit as Differentiator: RC High Pass Circuit as Differentiator - A circuit that gives an output voltage proportional to the derivaÂtive of its input, is known as…
