Faults in a Transformer
Transformers are the major power system components which are used at various voltage levels with the capacity varying from 1kVA to >600 MVA. Transformers are widely used devices to transfer…
Types of Transfomer Cooling Methods
The developed heat because of core and copper losses should be dissipated to atmosphere continuously during operation.If the heat arises by the losses is not removed then The developed heat…
Advantages and Applications of zigzag transformer
Zig Zag transformer ZIg Zag transformer is a special purpose transformer used in power system, which is also called as “interconnected start winding”. Even though this type of transformer connection…
What is a transformer tap changer?
The transformer voltage at the load side desired to be constant or as close to the design value. But the load voltage may vary according to current drawn by the…
What is Integral Wind Up ?
The PID controller plays a major role in controlling the process parameters in process industries. It consists of Proportional term, Integral term and Derivative term which combinedly reduces the transient…
Interview Questions on Transformers
What is a transformer? Transformer is a static electrical device which transfers power from one circuit to another circuit without any physical contact. The main aim of this transformer is…
Basic Electronics Questions & Answers
1) What is an Electric Potential? The potential of a particular point, is defined as the work done to move a positive charge particle to move to that point in…
Transistors Questions & Answers
What is a transistor and types of transistors? Transistor is a semiconductor device capable of transferring the signal from high resistance to low resistance or vice versa. Transistor has three…
Semiconductors Diodes Questions & Answers
What is a PN junction diode? The name PN junction diode stands for a junction termed as PN junction formed by injecting into one side of intrinsic semiconductor crystal acceptor…
Amplifiers Questions & Answers
What is the effect of negative feedback on voltage gain, BW, Noise, nonlinear distortion, Ri, Ro of a voltage amplifier? The voltage gain, bandwidth, noise, nonlinear distortion, input resistance, output…
