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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is form factor.and rms value..

IIM, Torrent Power,

1 5063

WHY ARE THE LT GENERATORS SOLIDLY EARTHED WHILE THE HT GENERATORS ARE EARTHE THROUGH NGR OR NGT??

3 8682

what is the maintaining Cf in UPS.

Enercon,

2356

how to design domestic earthing pit and earthing wiring?

1 6753

placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!

2168

why induction motor always operate at lagging p.f.?

4 11098

if we give DC suply to the AC motor what hapen

TATA,

5 8479

Why Indian Electricity frequency desined 50 Cycles as developed countrys are using high frequency with low voltage

1 4898

what is the use of spherical metal balls attached on to the earth wire of transmission over head lines?

2 4741

what is the function of an auto reclosure relay in OHL?

1 4898

why transformer capacity is called KVA and motor capacity is called HP/KW? Why transformer capacity cant call HP/KVA?

5 12277

what happens when back feeding supply accidently collapses with normal supply ??? How?? [that is sometimes in a substation 11kv feeder if their ws long time permit work, back feeding supply will provide from nearest substation... if accidently after the permit work,they charged the feeder without removing back feeding wat will happen...?]

KSEB,

1 4326

Difference between low impedance and high impedance Restricted Earth Fault

3123

Differentiate between Low and High impedance Protection

1 3851

Differentiate between Zero and Negative sequence current

1906


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is meant by skew width in machines?

2212


how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

2167


How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer

2048


how can we change the phase angle b/w two phase?

5177


what is spadar bar .why I use in DC generator.

1927


How convergengr of nr method is not dependent on selection of slack bus and how gauss siedel method depends?

1805


What is a fuse? How does it work? What are materials used?

2036


Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

2307


Why can't we parallel Voltage transformer secondary circuits?

1637


What are the protections for safe running of electric generator?

2267


If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.

6128


how to electrically make connection to ferroli GN2N?

1943


What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

1590


how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?

5993


is there any role of power factor with frequency variation? and how we can manage the frequency variation?

2059