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Electrical Engineering Interview Questions

what is meant by LT & HT?

ABB,

8431

what is the relation bw voltage and F in capacitor?

4205

whether the battery is voltage source or current source?

2973

what happens when back charging of transformer is done for longer period

6776

How to calculate VA rating for CT or PT or Control Transformer?

Veez,

1833

How to calculate motor current for 3 ph & 1 Ph motor from KW rating?

4501

what is standard height of an energy meter from ground?

3283

power requirement of an l.e.d?

2616

I have suguna 3 hp pump for my agreeculture work.It deliver the water from 45 feet well .I suffered by powercut.During powercut i got 2phase supply only .My question is can i run the pump in 2 phase supply using capacitor?.Can u explain me how to connect the capacitors?

2689

l&t switch FN 63 handle position can we change

1638

will three phase energy meter run without one phase

3560

why DG sets power factor is 0.8 lagging.

6198

Can i use the B-curve MCB instead of C-curve MCB

1145

please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.

869

can we measure +,-.zero sequence current ....? if so how can ???

NLC,

2558

Un-Answered Questions { Electrical Engineering }

In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans

1080

What is the test block protection relay if any body know plz explained

578

How much should be the load percentage for 15kva Inverter and Iinut & I output load with Calculations

1103

we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

891

As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?

746

when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

1289

Why syn. Generators are used for the production of electricity?

204

what is the total power generation in india?

1250

Testing report of Earthing of 3.15 MVa PTR.

1599

How to decide cable tray size?

216

Why the field rheostat is adjusted such that the voltmeter reads 380V

1331

What is class ab operation?

188

Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

1079

Why inductors are installed in electrical circuits?

182

what is gas turbine intercooling ?

1064