Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how many types of Earth bits available

1 3194

why we used stone chips under the transformer area..

SSC,

2 4993

whay we used silica gel in Transformer

3 6962

what is the formula for calculate the turns in Transformers

2 4137

What is meant by CFL & PL lamps

1 4463

What is meant by RCCB

3 5357

how much watts the computer will takes

2 3873

what is the purpose of CT,PT

8 21910

What are the relays in ACB and VCB

ABB, Bhel,

1686

which types of relay used in acb and vcb?

IBM,

2312

give 5 differences between relay and contactor

Texas,

1 2473

what is the formula for calculating motor rating? Example: If we want to rotate a 1000 kg waight disc up to 100 RPM, which size motor will require?

1 3654

Dir sir we have 750 kva Caterpillar dg set we are fas on different problem we start dg set ofter 1 mint apply load around 500a dg was run one or 3 mint after 3 mints dg was shutdown automatic how to face tis problem

3 4707

what is the formula for AH?HOW CAN IT CALCULATE

1 3185

if our load is 65000 watts howcan we find out all char like cable size. mcccb etc

3 4494


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Un-Answered Questions { Electrical Engineering }

what is the ATS .And how it works.

1040


how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

1832


In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?

1075


How to know vacuum in vacuum cylinder of breaker in working condition

1483


my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking

875






what is the synchronous timer ? and it applications.

1893


what is the difference between earthing and unearth

2359


What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

963


Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.

1456


This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

1570


What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?

2279


How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?

1934


how to calculate the distance relay faulty zone?pls explain?

1576


Is it advantages of having star-delta vfd than normal star vfd , if yes why?

1761


how ceiling fan worked?

1479