Other Electrical Engineering Interview Questions 

Question 
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Answers 

what is voltage, and how it makes the electron to move? 

6 
Y phase's (RYB) r only 3,not 4 or 5?plz answered in breif? 

1 
How to select the different contactors ( starter
combination) for different AC motors? what about fuse
cappacity 4 different motors too? 
Equate 
2 
My switchgear busbar is rated at 2000A and just imagine the actual load on busbar is 1000A. From that busbar there are 10 outgoing feeders. Now the question is will the load be 1000A on each outgoing feeder or 100A per outgoing feeder. 2nd thing how do i calculate the load on individual feeder. Thanks for your time. Please provide some clarification on this issue. 
Alstom 
1 
What is the method & formula of Fault level calculation in
power Transformesr. 

3 
the distance from my office to d.g is aprox 400mtrs and
voltage drops ibn my office near about 40 volt what should
i do p[ls suggest. 

4 
How to control speed of DC motor with AC power? 
vguard 
7 
in 4 pole lap wound dc motor one brush is disconnected
then what result in new voltage if its voltage is v
volts power is p watts current is i amp 
GATE 
1 
Where 48 volt DC use & why????????? 
Ericsson 
10 
WHAT IS RETARDATION TEST IN DC MACHINES? 

4 
How to select a D.G set for calculated load of 110kW..? 

5 
wat is the advantage of increse in frequency?how the
powersupply range decreses as the frequency increses?like
in america,it uses 110 ac and 60 hz? 

4 

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