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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%

1037

what is real and reactive power?

2 2562

what is mean by drives?

1035

what is Bucholtz Relay test???? Explain??

KSEB,

2 5478

What are the procedures followed for underground cable laying.....???

KSEB,

2 8805

Give a brief idea about Control circuit wiring in Substation...???

KSEB,

2 4062

what is oti and wti

Jindal,

3 5891

why we choose 50 or 60 hertz not other value for the power system?

4 5196

how maney type tempereture measurement ?

TATA, Tata Motors,

1399

Why the rating of dc machine is in HP??/ Do reply guys..Its very important......

Apollo,

4 4510

why transformer ratinh is in KVA????/

Apollo, Priyadarshini, Reliance,

8 6031

what is the relation between the size of the machine and the frequency? (when the frequency increases the size of machine will increase,why?)

2 3057

why we have and use 3 phase not 2 or 4 or other in power system?

1258

can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?

1071

what is trip circuit supervision relay? How does it work in switchgear?

Radha Regent Hotels,

6 34717


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Un-Answered Questions { Electrical Engineering }

why dc is used in control circuit for mv & hv switchgear instead of ac

1015


what is diff btw electric,magnetic & eletromagnetic field

1089


1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?

1849


Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

2681


what is the function of Moulded case circuit breaker, why it is called Moulded?

541






What difference between ref protection and differential protection ?

897


Why High voltage are generate noise ?

490


What is shunt voltage and u v voltage witch one best

873


What is the difference between AC and DC injection methods for rotor earth fault protection

1240


what is the sludge current

1071


How Can you do Maintenance of ACB of 2000Amperes

1189


What is the Minimum winding resistance of motors ( small & big)? referance range

1332


Electronic circuit

130


Why Utility Distribution System in India is mainly at 11 kV? Why not Utility go for 33 kV?

874


All tape of electrical questions Answers tape of motor transformer e.o.t crane

1688