Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if our load in 3 phase circuit is 4000 amp. calculate the capacity of capacitor panel if line power factor is.80 .

ST Micro,

1 3528

 where the Motorized mccb to be used? In Motor control center panel starters ,it is use full. please answer  

Voltas,

1 4368

What are reasond for high wattage in single phase induction motors

1579

why we use 50 hz frequency in india .. why not 60 hz 

3 5702

Arrangement of earthing materials.like what we put first charcol,then salt.then plate. Plz answer me about that.

1 2226

What is rccb?

1 4431

what happends when an isolater is operated on on-load

1 4007

in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

1474

why current is constant on d.c?

1762

what will happen if frequency is below 50 hz?

Student,

1758

distribution transformer de-rating formula on over limit iron losses  

IESCO,

2006

if a train is running on a speed of 40 K MPH and crosses a individual passing by him in 48 secs who is riding a horse with a speed of 25 K MPH. what is the length of the train?

2 3626

in a delta-star with neutral grounding on star side what will happen if one star limb  got opened at star point

NTPC,

1 4438

what is power factor?

3 5659

Why we are using LA Rating 10kA in 66 kv substation

L&T, NMDC,

1 6797


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Un-Answered Questions { Electrical Engineering }

What is the ratio of Booster transformer?

1805


What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?

1784


what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor

1667


hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

1870


how to check avr of dg set of 125kva

2319






how current is reverse from its normal direction during the fault?

2178


i want to know d working mechanism of tafe tractors next i like to know d engine type of apache bighs can anyone help me

1951


What is meant by short-pitched winding?

863


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

1943


What are the advantages of autotransformer?

940


what is mean by Digital Logic Meter (DLM)

2042


in conventional fan regulators how the current varies with speed?

1642


What is Antipumping Function & If we have C.T how we find the Ratio ?

1712


what is PID control in VFD drives?

1673


how to select proper cable for ct wiring so that drop within the limit.

1665