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

if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

0 Answers  


Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

0 Answers   HAL,


PLC Training in chennai | PLC Training institute in chennai, PLC Training center in chennai | Best PLC Training in chennai | PLC Training course in chennai | SCADA Training in chennai | PLC Training in india

1 Answers   Exide,


how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?

0 Answers  


a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?

2 Answers  






what is the difference between earth and neutral.

9 Answers   DLF,


Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

0 Answers  


how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????

0 Answers   Vatika,


what is rating providing of contactor,relay,fuse unit for motor output power

2 Answers  


What is proportional controller?

0 Answers  


how to decide the rating of the ct for 1500 kva transformer

1 Answers  


Please provide me detail cable voltage drop calculation

1 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16637)
  • 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)