Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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 12937

why the stator is not laminated in DC machines?

4 15211

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,

1636

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

ABB, AEC, BGH,

19 24025

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

ABB,

16 19486

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

ABB,

10 12019

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

ABB, Essar,

9 12167

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

ABB,

7 10032

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

ABB,

11 17184

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

Suzlon,

1948

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

1 4066

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 9597

What is transformer saturation?

1 3384

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

2 26118

what is general test conduted by transformer

Wipro,

8 12204


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Un-Answered Questions { Electrical Engineering }

Why corona leads to production of Ozone and glow of the color VOILET?

1620


How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.

1172


What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?

2346


what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

1980


how can decide the current rating of oltc

1975






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

1525


What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

2627


What is the range of the stator resistance of 3 phase induction motor?

1558


how works inductive &capacitive sensors?

1669


what r PID controllers?why they r used?what is there purpose?plz Explain in detail

1729


Give some example of fault limiting devices?

937


Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

908


How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?

1903


The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

1302


How to assume answer to electrical questions

1160