Electrical Engineering Interview Questions

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RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE MORE THAN 11KV ???????????????//

I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.

IOCL,

what is the difference between inverter and ups & what is the earth resistance for ups , if its high why so

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Un-Answered Questions { Electrical Engineering }

What is power factor? How to improve Power factor? draw a circuit diagram showing the connection of power factor improvement equipment to the electrical instillation.

What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.

Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

i completed my DEEE. and i want to electrical c license. how to get it..?

ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH

any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?

what is the maintaining Cf in UPS.

What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

how we can calculate chiller required ampear?

from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?

What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker

what is the differebt between ac and dc fuse?

In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

number of I/O devices in siemense plc

what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?