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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is motor type DG starter

EFS, HDFC,

5 8562

Electrical Engineering

Gamesa, Medha Servo,

1053

How to Decide the Location of Earth pit for Compressor in Oil Depo? and How to measure the resistance of earth pit Pls explain me with the help of Circuit Diagram?

Triune,

1454

how much maximum load a 2 core (Single phase) 16mm aluminium wire can take ?

1795

What is the differance between transformer neutral solidly earthed and transformer neutral earthed through resistor?

L&T,

1 4159

what is buffer resistance starter.?.What is the working principle and where it is used..?

1126

Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?

1422

what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

Tata Power,

2309

what is meaning of bus riser

TeamLease,

1434

how to estimate wiring ins roughing ins. and boxes

1561

Dear all, how we select the cable size according  to current with or without including different correction factor , is there any direct method for sizing of cable... 

Kharafi National,

1263

Dear Sir I am living in Jaipur Rajasthan  now I did complete my b tech degree in electrical engineering in 2012  Sir how I gate certificate of competency for electrical supervisor

ONGC,

1194

how to compute kAIC?  with formulas...

3158

What is different type of Electrical curve and how it protects the equipment's while up-normal situation?

999

Differance between power circuit and control circuit

3 3905


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Un-Answered Questions { Electrical Engineering }

explain transformer ct connection?

1065


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1030


How to do stting of vl250 siemens MCCB

2045


What happens if i apply 500V to 440V rotary Switch ?

1006


How to synchronization will be done between two DGs ?

906






What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

2383


if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

1049


when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

1063


reason of diode failure in alternator

985


The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

785


what is load vs Torque curve & why it is used?

1186


At what factor resistance r of a conductor depends?

244


Difference between On Line capacitor and Station Type capacitor.

1211


What is a parabolic signal?

216


Define transfer function?

242