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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what types battery chargers are there?wanted with details.

SCS,

3 7038

How to increase the specific gravity of DG batteries?

SCS,

3 6920

How to increase the specific gravity of DG batteries?

SCS,

5 13281

How to increase the specific gravity of DG batteries?

SCS,

12 22171

Procedure for conduting vector group test on power transformers.why it is conducted?

Grasim,

6 24165

hello friends..... any one have papers or any study materials?sail ,hpcl...?

1886

hello if any one have papers vof hpcl or sail, plz send me

1921

any one have papers of hpcl or sailof ELECTRICAL ENGG.

1 4089

What is the role of link in neutral in a three phase ac system?

10 29146

Electrical Diagram of Electric Arc Furance from transformer to Furances

1 5728

how on load transformer is chnage the Tapping ?

2 6714

diagram for soft stater ?

3 9262

installation of subsatation of33kv

1896

why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

HCIL, Jindal, Siemens,

7 32507

plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in

HPCL,

2082


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

2816


Efficient electrical earthing in hard rock area

1572


In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

1966


We have 5 Distribution sections with variable loads&We have 3 Gensets(500kva,380kva&250kva) our total load is between 400kva to 600kva. so how could we connect 3gensets.

1858


how harmonics generated in induction furnance? how minimise it?

2006


what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?

2276


explain with diagram how to protect transformers and substations from over current with help of CT's?

1954


Explain the operation of variable frequency transformer?

1138


I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

1958


How do you determine the size of transformer radiators in a transformer?

1926


how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...

2091


Safety of on line ups

1950


what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation

1996


why electron produce magnetic field when it is in motion?

2150


how to find the resistance and gap volatage of the diode??

2057