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Electrical Engineering Interview Questions
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in elevator industries , how to calculate the required KVA for the elevator (elevator spec- 40A module , motor of 13.5KW, 20A)

DLF, Tata Steel Limited,

1 12533

why the stator is not laminated in DC machines?

 4 14771

I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

IOCL,

1512

if we convert kw into kva,which one formula use by us,pls tell me?

ABB, AEC, BGH,

19 22506

if we convert watt into kva,which one formula use by us,pls tell me?

ABB,

16 18150

if we convert Ampers into kva,which one formula use by us,pls tell me?

ABB,

10 11206

if we convert kw into Ampers,which one formula use by us,pls tell me?

ABB, Essar,

9 11211

if we convert kva into Ampers,which one formula use by us,pls tell me?

ABB,

7 9383

if we convert ampers into kw,which one formula use by us,pls tell me?

ABB,

11 16077

How to decide and select the different earthing wire size for the different types of earthing

Suzlon,

1805

What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

 1 3873

Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

IOCL,

7 8834

What is transformer saturation?

 1 2976

every motors written in name plate IP 55 what is this?

 2 25665

what is general test conduted by transformer

Wipro,

8 11557

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Un-Answered Questions { Electrical Engineering }

What is order of the system?

700

how can i change the rotation of the AC single phase induction motor and show me by diagram

1303

what is diff btw electric,magnetic & eletromagnetic field

1556

how we can calculate 2 phase welding transformer rating or total power?

1398

What can you contribute to the progress of our Company as an employee if you are selected?

4868




what is meant by impulse voltage?

1538

How to select a contactor? How many types of contactors are available

2725

which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?

1693

What does the term power factor shows?

592

When steam condenses and becomes water at the same temperature, the specific heat for the process in kJ/kg k is

648

How to determine stage of Automatic Power factor controlling Relay(Apfcr)?

1686

in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

1400

What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

1230

why in the three pin plug all 3 pins are cutted ?

1525

Please tell me the formulaes while designing a substation for power Calculations in designing a 33 KV Substation?????

1367

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