Effects of Short Circuit Faults on Power System: Depending upon power circuit voltage and configuration, method of neutral connection, presence of regulating devices and the speed of disconnection of the…
Various Pilot Devices in Motor Control: Motor control devices may be classified as primary control devices and pilot control devices. Pilot devices control the primary control devices which in turn…
Steam Power Plants Interview Questions and Answers: 1. Why overall efficiency of a thermal power plant is very low ? Ans. In a steam power station, more than 50% of…
Measurement of Physical Quantities: Measurement of Physical Quantities is given by Displacement Measurement Strain Measurement Force Measurement Torque Measurement Pressure Measurement Temperature Measurement Water-Level Indicator Measurement and Display of Speed…
Oil Circuit Breaker: Oil Circuit Breaker are extensively employed in our power systems. In these the properties of the arc are employed for arc extinction. Thus by using arc energy…
Transformer Protection Types: Nature of Transformer Faults: Power transformers, being static, totally enclosed and oil immersed develop faults only rarely but the consequences of even a rare fault may be…
Half and Full Wave Rectifier Circuits: Half and Full Wave Rectifier Circuits for producing high d.c. voltages from a.c. sources may be (a) Half wave, (b) Full wave, or (c) Voltage…
Short Circuit kVA: Although the potential at the point of fault is zero, it is a normal practice to express the short-circuit current in terms of Short Circuit kVA based…