is harmonic useful or it distort the alternating quantity?

Answers were Sorted based on User's Feedback



is harmonic useful or it distort the alternating quantity?..

Answer / guest

It is harmful.Blown-fuses on PF correction caps, due to
high voltage and currents from resonance
with line impedance.
- Mis-operation or failure of electronic equipment
- Light flicker results when there are voltage subharmonics
in the range of 1-30Hz. The
human eye is most sensitive at 8.8Hz, where just a 0.5%
variation in the RMS voltage is
noticeable with some types of lighting.

Is This Answer Correct ?    1 Yes 0 No

is harmonic useful or it distort the alternating quantity?..

Answer / shaheb

normaly its harmful accept for heating applications..for
machine it produces ripple in torque that produces
vivration & noise..ripple component produces heat..

Is This Answer Correct ?    2 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

what is difference between armoured cable and un armoured cable

2 Answers  


How instantanious short circuit current is calculated? its formula?

1 Answers  


Why is it preferred to use a wattmeter(s) to measure power in three phase systems rather than using a combination of other instruments e.g. voltmeters, ammeters etc?

2 Answers  


why breaker closing coil gets burnt if supply is continously provided to it.

1 Answers   TATA,


which one is the most common system for secondary ditibution

1 Answers  






if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.

0 Answers  


What do you mean by isolators and circuit breakers?

6 Answers   Bhushan Power Steel,


What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

0 Answers  


Explain about technical and non technical losses in distribution system?

0 Answers  


how megger step up the DC voltage

1 Answers   Voltech,


what is Dog conductor? wasp conductor? rabbit conductor? ant conductor?

3 Answers  


why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?

2 Answers   GE,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)