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Tuesday 12 November 2013

QUIZ OF THE WEEK-3


 Learn  something  
or 
Share your knowledge 
with us
               
 Give ur answers in chat box 
chat box is present at bottom right corner 




1. Why We use of Stones/Gravel in electrical Switch Yard? 
Give at-least four reasons ?  


2.Can a three phase transformer be loaded to single phase transformer ?

3.Can a single phase transformer used for tree phase source ?                                                                                     

Monday 28 October 2013

QUIZ OF THE WEEK -2




 Learn  something  
or 
Share your knowledge 
with us
               
 Give ur answers as a comment .............. 




1.WHAT IS  A WAVE TRAP?

2.IF WE WANT TO CONNECT A WAVE TRAP IN WHICH  MANNER WE CAN CONNECT  TO EXISTING SYSTEM?

3.IN THE INNER SIDE OF WAVE  TRAP CONSISTS MAINLY TWO DEVICES . ONE IS "TUNING COIL/DEVICE" ANOTHER ONE IS    _____________?





Monday 21 October 2013

QUIZ OF THE WEEK -1

  1. Can 60 Hz transformer be operated at 50 Hz......?
  2. What is meant by Inrush current ?
  3. Is the inrush current use-full or useless?
Answers

1. Transformers rated at 60 Hz, should not be used on 50 Hz service due to higher losses and resultant heat rise.  However, any 50 Hz transformer will operate on 60 Hz service.

2.Maximum instantaneous input current drawn by an electrical device when the  first turned on of system 






Mtech academic calander

Jawaharlal Nehru Technological university ,Ananthapur 













                                                  

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