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

After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.

0 Answers   KSEB, L&T, Siemens,

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A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....

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why we still use sinusoidal waveforms for transmission and utilisation (we know generation is sinusoidal), instead of other ac waveforms such as triangle, sawtooth, square etc.,? is there any mathematical derivations to prove sinusoidal is efficient than others?

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Dear sir, please tell me how many day use CTPT transformer

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