is harmonic useful or it distort the alternating quantity?

Answer Posted / 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



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the power factor of a transformer at no load?

674


what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer

1603


what happen if the parallel generator phase angle shift by 1 degree in manual mode

1578


How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

1844


what is auto re-closer?

2007






what is the chiller and working principal

1869


is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

1601


Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

1573


HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.

1779


do we use neutral grounding for resistive balanced load? if we use what happen?

1344


What is the unit of charge and current?

641


description about dry type transformers

1489


how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?

1684


What are the advantages of thermal power plant?

693


Give atleast 20 alternating current apparatus and devices.

1270