Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What should be the minimum and maximum ohmic value for earthing?

2 4734

As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

2 3989

What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

6 8080

How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 6234

Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV,20kV, 30kV?

Bhel,

2 6654

Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

4 8894

Explain why the Voltage drop will happen in 3 Phase line?

3 6104

What is the equipment used to control the generator output?

3 4769

What are the factors to be considered during the Synchronization?

3 5762

What should be value of Circuit breaker operating time and tripping time?

5 13070

Why the CT Secondary is rated as 5A generally?

2 4836

At which time Synchronous generator act as a Synchronous Condenser?

1 5727

What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

2 6783

What are the protections to be used for Generator?

3 4895

Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3157


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Un-Answered Questions { Electrical Engineering }

what are the differant std sizes of cable trenches?

1524


what is maxemo work permit procedure

1672


how the CT and PT is connected in the circuit during testing of transformer explain with diagram

1501


what is the function of bearing in dc mchine" and where it is placed

2066


what material is the electrical housing wire made of? is there any difference for the telephone lines?

1461






why in a swquence network representation, the negetive sequence generated voltage is taken as zero?

1493


what the function breaker failure scheme, how is it operated

1417


Can any body tell me the different types of LT cables & their application.

1618


What is meant by Load Encroachment in OHL Feeder Protection?

3101


WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?

3844


explain with diagram how to protect transformers and substations from over current with help of CT's?

1492


how is the testing of an REF relay? what are the test REF circuit having?

1443


HOW CAN I GET 5CORE HO7 CABLE SIZE IF I HAVE 1800A?

1608


Work done in a free expansion process is

699


earth also having a gravitational force (magnetic field of north and south)but it attracts any object compare to this theartifical magnetic cant perform same as earth why?

1375