Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.

Allied Group,

1254

How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

1293

why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?

1361

If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?

Reliance,

1296

how to check the LRS resistance .......................

1 3002

along with technical test papers

Vee Technologies,

1126

what should be correct gas pressures to be a 1.5 ac unite

DDK,

1062

How can we calculate cable size in Low voltage & high voltage

United Breweries UB,

1146

What is the main purpose of relay?

1 1646

completed BE & done apprentice at tneb & having experience 6 years. want to get c license. will apprentiship & BE be helpful for getting c license. will i get any preference by showing this?

1185

for opening electrical shop, tips needed.

1380

Form S and "c" license application both are same? @ tneb portal

1252

I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

Elmaco,

1388

what is the difference between b c d curves on mcb

1331

i have to install a HT panel, what components, I have to use in this and what will the diagram of that diagram,please tell me each and everything.

1331


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Un-Answered Questions { Electrical Engineering }

what happen as when voltage drop(or may decrease) ? in case of atomic base theory?

1534


i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

1569


What is the difference between multimeter

1441


we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor

945


For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is

713






At full load wat is the motor p.f And at no load will is the motor p.f?

1708


Details about Flux Compensated magnetic Amplifer starter for motors

1584


what is the difference between STAR and DELTA connection and application wise how it can be utilizedd

1723


What is the importance of earthing?

655


what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

1423


Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m

4325


how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc

1344


plz tell me,ht and lt panel terminals in substations explain beiefly

2328


what is the solution for meger test failed the MV cable?

3513


how to calculate distance between busbar supporters for LT panel, what are the factors influencing in this design

4694