Home » Electrical Q & A » Page 2

Tag : Electrical Q & A

Power Electronics Interview Questions Part-1

S Bharadwaj Reddy
Why thyristors are not preferred now a days for chopper fed DC drives?  Since it requires commutation circuit, thyristors are not preferred now a days for chopper fed DC drives....

Electrical Switchgear & Protection Interview Questions

S Bharadwaj Reddy
What are the main functions of control gear? To provide a means of starting and stopping the motor and, at the same time, of limiting the starting current if required....

Interview Questions on Transformers

S Bharadwaj Reddy
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...

Protection Relays Interview Questions & Answers

S Bharadwaj Reddy
Where does Negative phase sequence relay is employed? Negative sequence relay is employed for the protection of generators and motors against unbalanced loading that may arise due to phase to...

Basic Power Electronics Interview Questions

S Bharadwaj Reddy
What is holding current in SCR? It is the minimum current required to hold the SCR in forward conduction state. When the forward current  becomes less than holding current, SCR...

Substation Interview Questions Answers

S Bharadwaj Reddy
What are different insulators employed in substations? Some of the insulators employed in substations are: Pin insulators Post insulators Strain insulators Suspension insulators Hallow apparatus insulators Dead-end insulators Solid core...

Induction Motor Interview Questions & Answers

S Bharadwaj Reddy
[1] How does the Induction motor work? (OR) Why does the Rotor rotate? When the 3 phase stator windings are fed by 3 phase supply, a magnetic flux of constant...

Power System Interview Question and Answers

S Bharadwaj Reddy
[1] What is meant by synchronous condenser? An over excited synchronous motor running on no load is known as synchronous condenser. It is used to improve the power factor of...

Electrical Engineering Interview Questions

S Bharadwaj Reddy
[1] What are the two types of SRM? (i) Rotary SRM (ii) Linear SRM [2] what are the types of rotor position sensors in SRM? (i) Optical sensor (ii) Hall...

Questions and Answers in Electrical Machines

S Bharadwaj Reddy
[1] What is an ideal transformer? The ideal transformer should have the following properties: It has no losses Its windings have zero resistance It should have zero leakage flux (100%...

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

WordPress Image Lightbox