Answer / ue

A sinusoidal component of a periodic wave or
quantity, such as voltage or current, having a frequency
that is an integral multiple of the fundamental frequency.

Answer / bajeerao chavan

harmonics are some distorted waveforms that travel at a
multiple frequency of the fundamental frequency.

Answer / ibrahim

harmonics is impurities as ripples in dc

Answer / svh00987

Harmonics is a hypothetical group of sine waves each
representing frequency as a different multiple of the
Fundamental frequency which is having a distorted waveform.
All these hypothetical frequencies, if superimposed, would
result in to a single frequency with the exact distorted
waveform.

Each of these waves is call a harmonic. If the frequency of
the wave is twice the fundamental frequency, it is called
the 2nd harmonic and so on...

As such, if the most prominent wave is 3rd harminic, a
tuned filter could be designed to bypass that component and
thus improve the wave form.

It is just like making a car which is pulling towards left,
to go straight by applying a force towards right by your
right hand. Whatever sub-concious calculations your brain
does to determine the force required to be applied by the
right hand, similar analysis is possible by using
annalyzing instruments to determine contribution of various
harmonics towards distorting the original wave form.

The distortion is caused due to non- linear loads i.e.
loads which do not draw current continuously during a cycle.

Answer / geno peter

well, hormonics is a mixture of AC and DC waveform

what happens when current(ac or dc)flowing through a boucket of water?please describe it.

3 Answers  

60 watts bulb and resistor home heater is connected in series and 230v is given to the circuit. The heater is giving some amount of heat. If instant of 60 watts bulb replace 100 watts bulb what will be the output of the heater?

2 Answers   NPCIL,

what is the value of current and voltage that our body can resist ?

3 Answers  

Which of the following are the important limitations of rod gap surge arresters? 1. They are not capable of selling off power frequency follow up current. 2. After a discharge, the rods are destroyed completely. 3. Performance is affected by climatic conditions. Use the following codes for selecting the correct answer. Codes: (a)1, 2 and 3 (b)1 and 2 (c)2 and 3 (d)1 and 3

1 Answers  

Why the motor was take the starting current is high?

3 Answers  

Can we use generator transformer as step down transformer? How?

3 Answers  

can we connect transformer with star conected secondary to delta connected primary in series?

1 Answers  

why not starting switch first connect in direct on line starter?????

0 Answers  

1. what is the power factor of a purely inductive load? (i) Zero (ii) Lagging (iii)Leading (iv) Unity 2. which type of transformer connection is preferred in case of power supply transformer? (i) Star/Star (ii) Delta/Delta (iii) Star/Delta (iv) Zig Zag/Star

2 Answers  

ult of expression 'document.FrmQF.myem

0 Answers  

what is the effect of power factor on DG supply,i mean to say what will the effect if we add capactors on dg supply.

4 Answers   HCL,

why do we provide metallic enclosure to bus duct and then ground it?

1 Answers