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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 11609

why the stator is not laminated in DC machines?

4 13960

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,

1349

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

ABB, AEC, BGH,

19 20626

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

ABB,

16 16610

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

ABB,

10 10125

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

ABB, Essar,

9 10202

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

ABB,

7 8443

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

ABB,

11 14744

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

Suzlon,

1648

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

1 3639

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 7852

What is transformer saturation?

1 2590

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

2 25194

what is general test conduted by transformer

Wipro,

8 10764


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Un-Answered Questions { Electrical Engineering }

Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

1415


What is the count of hvdc transmission lines in india?

468


In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?

920


What is the function of Governor in Hydro Power Station? What is the Function of Lightning Arrestor Voltage Transformer (LAVT)?

2126


how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

1710






Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

1191


can we use NPT glands in LT panel

1144


How calculated single phase induction motor req. Capacitor?

926


What Is Connection APFC Panel In Compony.

748


what is different between relay and plc?

3574


what will be happen if earth point is being used for as a neutral point for raw power , and same will be used for ups earthing

1432


for 4 MVA , 33K.V/6.6K.V transformer. secondary side the connected load is 3000H.P. What is the rating of capacitor bank to be insttaled.

1900


what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????

1065


What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

1542


What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?

1474