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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

which is more dangerous AC\DC supply

3 7642

What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?

ABB, APL,

2502

What are the factor to be consider for CT selection in 132kV substation?

ABB,

2035

What is the In door to Out door Sub Station.

L&T,

5 9981

how to select the double earth conductor if 21A full load?

L&T,

2028

What r the specification furnishid in motor name plate?

5 7937

what type of euse we should use ? 1- High resistance & low temperature 2- High temperature low resistance

2 4305

What is the role of a Production Engg in a Industry?????

1 3279

What is Class and accuracy in CTs? Types of Classes and important of Classes?

2 6653

What is the role of Dedicated earthing in UPS System?

HCL, MSPL,

3064

THE ROTIO OF VOLTAGE AND CURRENT IN A CLOSED CIRCUIT

APGenco, Constant, Lanco,

12 28918

in power station power measuring unit is KW but in transformer is KVA why?

4 6959

what is mean by busbar and what is the difference between busbar,transmissionline,feeder,distribution line

5628

I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

9 12349

Diffrectiate between earthing and neutral

TATA,

6 9670


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

how to introduce yourself

1995


Where can I get CPWD electrical specifications & Shedule of rates? Please help me

2209


How colour picturetube works & how many year it will works.

1984


WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

2109


Define phase lag and phase lead?

1091


What is the most accurate way of testing ELCB?ELCB is better than RCD?

3299


Please tell me the earthing procedures adopted for the STAR-STAR 3 Phase transformer in india and give a better sugession for earthing

1913


For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

3230


what is the cause of voltage dipp or swell in the transmission lines?

2056


what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?

1876


explain Density

1088


What is the basic rule for block diagram reduction technique?

1211


Why cables and busbar both needed in LT Panels?

2151


how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???

1997


why would amp draw on neutral wire be as much as amp draw on the hot leg.

2063