Power Factor by Two Wattmeter Method: When we talk about the power factor in three-phase circuits, it applies only to balanced circuits, since the power factor in a balanced load is the power factor of…
Diversity Factor in Power System: Diversity Factor in Power System is defined as the sum of individual maximum demands on the consumers, divided by the maximum load on the system. This factor gives the time…
Comparator Equation in Power System Protection: Comparator Equation in Power System Protection - Taking a very general case to cover the complete range of conventional relay characteristics, let S1Â and S2 be the two input signals…
Energy Storage Materials: There is a lot of problem in storing electricity in large quantities. Energy Storage Materials which can be converted into electricity can be stored in a number of ways. Storage of any…
Environmental Engineering Interview Questions and Answers: 1. Define Environment. Ans. The physical, chemical and biological presence of living and non-living things outside an individual species is called as its environment. 2. Define the term Environment…
What is Inductor in Electronics? An inductor has been defined as a physical device which is capable of storing energy by virtue of a current flowing through it. An Inductor in Electronics is a circuit…
Zener Diode Interview Questions and Answers: 1. What is a zener diode? Ans. Zener diode, also sometimes known as breakdown diode, is like an ordinary P-N junction diode except that it is properly doped so as…
What is Low Frequency Compensation? The coupling or blocking capacitor tilts the amplifier response for step input. In Fig. 16.28, if a high value of resistance Rd is added in series with RC which connects…
Unbalanced Phase Current: The Unbalanced Phase Current in a 3-phase system can be expressed in terms of symmetrical components as under : Fig. 18.6 shows the vector representation of symmetrical components. It is usually profitable…
Distance Relays or Impedance Relays: The operation of the relays discussed so far depended upon the magnitude of current or power in the protected circuit. However, there is another group of relays in which the…
