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Question
why we use only sine wave in ac why we do not use other wave
forms
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 11
It is easy to find
out phase difference
or phase angle in
sine wave than other
wave so sine wave is
used rather than
other wave
 
Is This Answer Correct ?    1 Yes 1 No
Sachin
 
Answer
# 12
if we apply any wave form other than sine wave to the transformer the output is spikes due differentiation and devices dont work for those spikes and damage all home appliances so we use sine wave only 
Is This Answer Correct ?    0 Yes 0 No
Vijaykumar
 
Answer
# 13
plz see back side ofthe bimbra text book 
Is This Answer Correct ?    5 Yes 11 No
Mothilalnaik
 
Answer
# 14
the nature of sine wave is exponentionally
increasing&decreasing,we know that any system components
can have some cutin voltage regions ,in that region the
system accepts slow +ve&-ve increasing&decreasing
sigals,every system contains semicondutor devices,because
of non linearity property of semiconductor ,the sine wave
has the same property.so it can be used.
 
Is This Answer Correct ?    3 Yes 10 No
Mahesh
 
Answer
# 15
actually the design of alternator which give power to us in
only for sinewave or cosine wave, bt when v use to generate
cosine wave only 3/5 of angle can rotae smooth...... coz
wile 2nd phase start it neutralise second so no resultant
force will be there for generation of power............
 
Is This Answer Correct ?    0 Yes 14 No
Shailesh
 
Answer
# 16
We use only sine wave as the voltage or current in A/C
system is continuously varying i.e reducing or increasing
at every small interval.
 
Is This Answer Correct ?    6 Yes 22 No
Mamta.bhardwaj
 
Answer
# 17
sine wave gives smooth operation for the devies 
Is This Answer Correct ?    15 Yes 34 No
Sunil
 

 
 
 
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what is DG A,B,C,D check?   1
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For polarity test on a 11/3.3kV 2.5MVA delta-star Unit Auxiliary transformer,415V 3-phase supply was applied at the HV. Connection between Aa was made with a 2.5mm cable. As soon as power was switched on the cable caught fire and burnt. This test was then abandoned. It is noteworthy to say that a similar cable was also used in a similar transformer for the same. The cable did not burn and test was successfully completed with good result. What is wrong? Please, help me out.   3
 
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