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Electrical Engineering Interview Questions
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The formular of how to calculate a cross sectional cable to feed an electric motor. Examle: 15KW, 26.1A, 415V. Calculate the cable size in mm2

Sona,

3 6218

Can you explain the phase displacement between primary and secondary of power transformer of any vector group(for ex)?

1 2201

I have two power supply.a)govt. power b)Captive power.3 phase load connected inside factory.when source change govt. source to captive some motor rotate reverse. Is phase sequence changes when if off & on?If I off generator & on it again is it possible to get changed phase sequence??

ABB,

4 4718

what is the relationship between current and frequency in AC circuit?

3 36811

if i have one capacitor=80 micro farad which correct the unity power factor,but i want to make capacitor bank who correct the power factor.so,how to split this capacitance value?

2 2759

What is function of condenser in fan?

3 6395

WHAT IS RMU AND WHAT IS ITS FUNCTION AND HOW TODISCONNECT

Bhel,

3 6797

WHAT IS REACTIVE POWER?

2 3469

In the diesel generator wihch type of power we can get it ? Like AC / DC

Aditya Birla, Indian Steel, PTPS,

2 4237

in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?

1 3229

why transformer ratings are in kva

4 4544

What are all the points to be checked while decanting diesel from tanker lorry to HSD YARD

Cisco,

1 2341

What are all the points to be checked for a newly re-winded motor before installation

Cisco,

1 3276

sail kaott diploma ece ke interviw me qus.kis parkar ke aate hai aur G.S me kya puchate hai kya sameedyaan me kis parkar ke qu.puchate hai

Sail,

2660

What motor is used in ceiling fans and what motor is used in table fan.? why table fan is costlier than ceiling fan?

Bhel,

6 25617


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Un-Answered Questions { Electrical Engineering }

explain different losses in a transformer.

452


Can we check ELCB constantly from R1 to R8 phase in 1 no DB?

1060


How work of capacitor in dc supply...???

856


What are the advantages of vscf wind electrical system?

461


What is the estimated total hydropower potential of india?

465






What is the difference between Static and servo controlled voltage stablizer?

1459


What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!

1521


what is DRP panels?

1449


in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.

1416


"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS

1258


How to calculate energy stored in an inductance?

467


HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????

1199


How much earthing frequency is capable?

1389


What is the working mechanism of OLTC in Power Transformers????

3759


if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

995