Top 100 Power Electronics Questions & Answers
Why IGBT is very popular nowadays? Lower hate requirements Lower switching losses Smaller snubber circuit requirements What are the different
Electrical Q & A
Electrical Engineering Interview Questions & Answers
Top Electrical Engineering Interview Questions for Freshers
1. What is electric traction? Electric traction means using the electric power for traction system (i.e. for railways,trams, trolleys etc).
Electrical Machines Questions and Answers
Lap winding is suitable for high current and low voltage generators while wave winding is suitable for high voltage and
Induction Motor Interview Questions Answers
What are the advantages and disadvantages of Induction Motors? Advantages: It is simple and rugged in construction It is relatively
DC machines and Induction Machines Viva Questions & Answers
When DC Generator fails to build up the voltage, what are the reasons? No residual magnetism, reversal of field connections
Transformers Questions & Answers Part-1
Inrush Currents in Transformers – Causes When a transformer is energized after a short interruption, the transformer may draw high
Transformers Questions & Answers Part-2
Auto-transformer Advantages: Auto-transformers in comparison with the double winding transformers are generally advantageous of the voltage ratio is favorable from
Transformers Questions & Answers Part-3
Insulation Materials used in Transformers and Induction Motors Insulation materials used in transformers and motors are classified based on the
Transformers Questions & Answers Part-4
Where Star (wye) Delta transformer is used in Power system Star-Delta Transformer (Y-Δ ) Primary Y (High Voltage side) and
Power System Protection and Relays Questions & Answers
What is protective relay? It is an electrical device designed to initiate the isolation of a part of the electrical