Electrical Engineering Interview Questions
Questions Answers Views Company eMail

mccb service sittings be done?

1357

what is sevice settings for mccb?How can be it setted?

1474

CAn a TJM 10 relay measure over current ?

2 7471

what is sevice settings for mccb?How can be it setted?

1 3183

why magnetising curve not start with zero voltage?

TATA,

1839

what s d difference between inverter an ups

Jindal,

1 4574

why are transformers rated in KVA and not in KW

ABB, Bosch,

8 12309

Why glands not provided for XLPE cables

Saint Gobain,

1 6294

Why screen of the screened cable not earthed on both the ends of cable

1 3344

what is sevice settings for mccb?How can be it setted?

Bhel, Minda,

1610

WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?

3516

IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?

1428

what are the functions & ratings of panels mentioned below: 1. Main LT Panel(MLTP) 2. Motor Control Centre(MCC) 3.Feeder pillars 4.Busducts

Aurobindo,

1 3868

what is the meaning and difference between ELECTRICAL DRAWOUT and MANUAL DRAWOUT?

3 11082

what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB

1571


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Un-Answered Questions { Electrical Engineering }

what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

1521


Starting current of a 10 HP induction Motor is ______ time’s full load current.

2023


Why can't we take NO LOAD TRIAL of motors having V1 mounting??

1503


While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1449


For an induction motor wat is the loading/unloading cycle duration or interms of L/UL ratio/ percentage?

1583






any one can explain the stages of a knee point which is taken during ct magnetising curve.

1313


Can anyone please provide me details of MCCB/Contactor/SFU rating calculations for a motor feeder..for example 50 kw.. not from type-2 cordination chart. i want manual calculations..

2091


why and how current drawn by battery charger depends upon the altitude where it is located?

1559


how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating

1907


how many electricity poles are there and what are the names and their sizes.

1425


Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?

951


How earthing/grounding done in aeroplanes and ships.

3116


What is expention fastener (Fan)

1552


can we use NPT glands in LT panel

1318


Why wind turbines wheels rotate constantly

635