Interview Questions And Answers On Electrical Machines Pdf

interview questions and answers on electrical machines pdf

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Electrical Machines Interview questions

Answer: In transformer protection, harmonic restraint feature is incorporated to guard against magnetizing inrush current. What are the conditions for successful parallel operation of single-phase transformers? Answer: The satisfactory and successful operation of transformers connected in parallel on both sides requires that they fulfill the following conditions:. Why the tappings are normally provided on the high voltage winding of a transformer only? Answer: Tapping are normally provided on the high voltage winding of a transformer only because it has larger number of turns, has to handle low currents and is also easily accessible physically. What is the purpose of providing dummy coils in the armature of a dc machine?

92 electrical interview questions and answers pdf

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What is the power factor of a transformer at no load? At no load, the power factor of a transformer is very low and lagging, whereas the power factor on load is nearly equal to the power factor of the load, which it is carrying. What is the normal phase difference between the voltage and the no-load current in a transformer? What are the essential parts of a transformer? The essential parts of a transformer are as follows: i. Magnetic circuit consisting of laminated iron core and clamping structure ii.

ELECTRICAL MACHINES Interview Questions and Answers

In case of motor it produces unidirectional torque. What is the choice of material for the yoke? It is defined as the distance on the periphery of the armature between two coil sides of a coil.

It is interesting to read your blog post and I am going to share it with my friends. In , the National Association of Electrical Distributors was formed to "establish the electrical distributor as an essential force in the electrical industry and economy," followed by the National Electrical Manufacturer's Association NEMA in Today, the technology is becoming advanced day by day. Those gadgets and electronic devices that were considered impossible a few years ago, have become reality in today's world.

What is a Transformer 2. How are Primary and secondary windings of a Transformer connected 3. Name different types of Transformer based on Number of windings 4. Where Transformers are applicable 5. How does electrical energy transfer takes place in Transformers 6.

Electrical Machines Interview Questions & Answers

Сьюзан с опаской посмотрела на связанного шифровальщика. Стратмор сидел на диване, небрежно положив берет-ту на колени. Вернувшись к терминалу Хейла, Сьюзан приступила к линейному поиску. Четвертая попытка тоже не дала результата.

А ведь он мог быть сейчас в Смоки-Маунтинс, со Сьюзан. Что он делает здесь, в Испании, зачем спорит с этим психованным подростком. Беккер резким движением взял парня под мышки, приподнял и с силой посадил на столик.

Electrical Machines Interview Questions

Он почувствовал жжение в боку, дотронулся до больного места и посмотрел на руку. Между пальцами и на кольце Танкадо была кровь. У него закружилась голова.


Muhammad S.


1. Why almost all large size Synchronous machines are constructed with rotating field system type? The following are the principal advantages of the rotating field​.

Erlinda F.


Are you an electrical and electronics engineering graduate willing to work in designing and installation of electrical machinery?

Iven D. L. R.


Electronics in our lives is like the life support which is supporting the human survival and development.