Interested to Buy Any Domain ? << Click Here >> for more details...
what is hormonics. how it is generated & what are the
problem faced by that.
- 5 Answers
- 13338 Views
- APC, I also Faced
- E-Mail Answers
Answer Posted / graeme
Harmonics are frequency components that are whole number
multiples of a fundamental frequency. For example, in a
60Hz AC supply system, 2nd harmonic is 120Hz, 3rd harmonic
is 180Hz and 4th is 240Hz.
Harmonics are most often caused by non-linear loads (eg
transformers where the line current is distorted by the non-
linear B-H characteristics in the core), rectifier circuits
and phase control circuits. In all these cases, the
resulting load current waveform is not a pure sine wave, so
harmonics are present.
Harmonics can cause all sort of problems such a voltage
waveform distortion and the different harmonic frequency
components causing different impedance values to appear in
reactive components.
| Is This Answer Correct ? | 10 Yes | 1 No |
Post New Answer View All Answers
detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron
How to choose size of the cable w.r.to current carrying capacity ...
what is the difference between oil surge relay and buchholz relay.
what is the carona effects meaning in HT line transmmission system
what are the dimensions for 200 kva transformer plinth (plateform),in which pcc m20 is used..
diff b/w normal grounding and resistance grounding
I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in
What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?
what is p.s impedance measurement test in earthing transformer?
how to calculation increase capacitor,increase power factor for three phase.
determine two methods to find loose connection in operational electrical system?
Explain Random and Deterministic signals?
What is the settings of distance protection relay in 400 kv line
what's producer of XLPE cable laying in undergroung
i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com
