Electrical Engineering Interview Questions

how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

L&T,

1613

what is the concept of directional power?

1536

how to check a transformer insulation?

6343

WHY WE GENERATE 3 PHASE POWER ONLY AND NOT 4 OR 5 OR 6 PHASE??? PLS REPLY.

7814

What is the difference between 11kv/110v & 33kv/110v ? If both 11 & 33KV give 110v then what is the diiference ?

14093

PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??

1987

For fixed primary voltage how does secondary terminal voltage of a transformer change if the pf of inductive load is raised from 0.7 to 0.9 with load current remaining fixed ?

GATE,

4440

is there any current and voltage drop on liquid resistance starter water/soda tank ?

1497

while starting a liquid starter ,is there any volage drop on water/soda on tank.can we touch the tank on starting?

1464

what is the speed of the darkness?

3891

what is the electrical?

1653

working principle of oil startar

1475

what is the difference between mho characteristics and quadrilateral chara in distance protection

6833

WHAT IS THE DIFFERENCE BETWEEN NEUTRAL AND EARTHING

5560

for a 400kv t/m line with 10 ampere current will corona occur?

1720

Un-Answered Questions { Electrical Engineering }

why transmission is only 3 phase and not 2 or 4 or poly phases

1722

what is rating boiler

1577

State and define nortonâ€™s theorem?

794

List of equipments required foe industrial repair lab.

1526

what is mean by drives?

1515

I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

1217

what is thresold of perception

1481

Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?

1505

What it the purpose of parallel phasing transfomers??

1534

What are the types of excitation system?

1494

how freewheeling diode improves the powerfactor

4878

how we do Vector group ,magnetic balance and tap changer test in Transformer?

2048

delta motor winding resistance I take normally single winding is 2.5, which value is came delta connection ie RY ?

1552

How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?

1812

What are the different losses In a de mac1une'! t.xplam

2279