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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is dc induction motor ? and how to control its speed ?

HAL,

1 3918

difference between crane drive and line drive.

1659

can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?

3071

why we use tapechanger in primary side of transformer

Bhel, L&T,

5 9162

two bulbs of 100w and 40w respectively connected in paralel across a 230v supply.which bulb will glow bright and why?

4 13838

What is the function of RCBO? What are the different sensitivity ratings & each application?

L&T, Legrand,

2549

derive the formula of amp hours is calculated for 12v battery.where no. of plates is given

1 3165

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?

1762

Why should we use jelly filled armoured cables in underground Communication system? What is the use of the Jelly? If we go for unarmoured, then what happens?

Prasad Group,

1 3618

What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?

1992

Dear all i want to know FEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me shibin_75@yahoo.com

FEWA,

1 13515

what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????

3085

what is battery impedance testing and how we perform this test with four wires.

Etimaad, MRF,

1 4901

ALONG WITH MEGGER TEST FOR CHECKING OF MOTOR ,WHY WE MEASURE FOR RESISTANCE AND INDUCTANCE?

L&T,

4 8989

what is the function of supervison relay?Draw its wiring diagram.

IBM, R.R. ISPAT LIMITED,

2 6734


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

1817


how can i improve the power factor in domestic (230v)

1839


What it the purpose of parallel phasing transfomers??

1785


what is fault level of power system ?

5797


Difference between shunt, PMG and AREP excitation. Which is the most reliable between PMG and AREP.

9346


How to calculate flow of water delivered by pump when pressure & size of pipe line is given

2076


which is better to use svc or synchronous condenser why ?

1629


What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.

1865


Is it possible to connect a safety device in to parallel?

1849


What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?

1772


any earth foult trip the relay but in welding time not trip by earth foult

2973


Why mostly the HV side of transformer has Delta?

3011


What is Tachometer used to measure?

971


What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?

1782


why the name trunking bus PT

2793