Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Ratings of power transformer,Distribution transformer.

1333

why we are using Load factor?

1574

what is legal process of dg set?

Dutron Polymers,

1323

why three phase capacitor takes unbalanced current in capacitor bank?

Aggreko,

1235

In the market there is availability of MCCB & ACB (800A), So, Where i can use MCCB & ACB for the same Rating?

1 1848

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

1255

Why the symbol of register is "zig zag"

Suzlon,

1361

why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

Alstom,

1237

what is v/f control in VFD?

1300

two phases with neutral supply can be taken in 3C X 10 sq.mm cable .

SPCL,

1182

how to calculate insulation level of transformer?

1355

What is the difference between line drop and percentage line drop?

Suzlon,

1328

Alternating voltage and current is which type of quantities?

1 1778

difference between high and low impedance BUS BAR relay??

1323

3phase cable calculation formula by motor load

1261


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Un-Answered Questions { Electrical Engineering }

one electromagnet is called

1666


How to synchoronize the generator (with gcb,GT) to grid????? ????? from Grid iam getting power (rated 400kv/20kv) through GT and its goes to UAT.,,ST.,, now my generator(rated 20kv ) ready.,, now iam closing my GCB.,, in GT iam suddenly giving 20kv on that Gt.,, what will happend

1866


physical identification of HT & LT panel

1427


What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?

1714


How to decide cable tray size?

904




2121


why electron produce magnetic field when it is in motion?

1912


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

2216


Motor,transformers,capacitor tubelight etc....

1414


what is is the potential diffrence between two phase ?

5831


How to calculate wire length,size & current? ( related to control panel)

1929


What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP

1497


how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

1747


i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.

1636


How to check the cable fault / hv test of transformer cable.

1657