Electrical Engineering Interview Questions
Questions Answers Views Company eMail

WHY THE RATINGS OF TRASNFORMER IS IN KVA?

Jindal,

5 6635

What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.

1 7325

How do we calculate the maximum amount of current in a 300 SQ.MM cable ?

Roto Power,

1 2562

If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?

3 5367

Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

Pride Hotels,

1523

how the frequency was generated in power station

2 3736

As per which Indian Standard induction motors are manufactured?

2 3665

Who we calculate the generator NGR resistant, generator voltage 11 KV ?

ABB,

2 4379

if a motor is running at 1500rpm then how you can find its HP

Construction,

1 3720

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1321

i want wipro vlsi placement pattern please send me

1277

calotropis is an example of the following phyllotaxy

APGenco,

1 6553

Radio Carbon dating is used in a) find diseases b) find the age of relics c) find the carbon content in the atmosphere d) none of these

2 3303

How to improve insulation resistance of Motor

2 6855

why a single phase motor of same rating takes more amps than the three phase motor? as single phase motor at 230v takes 5amp per HP while 3 p motor takes 2.5amp per hp at 230v.

1 3893


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Un-Answered Questions { Electrical Engineering }

How to calculat the ratio of HT\LT in energy meter

2087


i am studying in final year can i allowed for 23rd UES of Indian army

1618


high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

1512


what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?

911


Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1384






What happens to a motor if it is connected in Delta connection

544


How to Design green buildings services? What is the advantage to design green building?

1353


PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

1682


How earthing of switchgear system to be done.

1432


What is the purpose of stablization resistor in high impedance bus bar protection

1497


H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....

1446


1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

1503


What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

1553


1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

10146


what will happen if frequency is below 50 hz?

1530