Active v/s Passive Harmonic Filter for VFD | PPT

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Active v/s Passive Harmonic Filter for VFD
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Description
Now that we have already confused by the acronym
VFD, let us simplify everything about harmonic
filters in this blog. Harmonic filters are used
to eliminate harmonic distortion, which is a
result of excessive current in and out of
appliances. Harmonic filters can prevent large
quantities of harmonics from causing extreme
damage to the equipment. It reduces downtime of
operation and keeps the operating cost under
control. They are of two types, viz., Active and
Passive.
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Active v/s Passive
Well, most of the things in the world are more
attractive when they are in active form. For
instance, I was asked to write this article in
active form too. But thats not the case with
harmonic filters. Its not a straightforward
answer in this case. Active Harmonic Filters are
used to eliminate or reduce harmonics experienced
from power received from the national grid. The
energy which is received in the form of
electricity is not necessarily clean the word
clean is used in a different context than
general- and needs to be regulated so that it
does not cause any harm to installation.
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Active v/s Passive
Therefore, active harmonic filters are installed
in the premises to reduce or minimize the
harmonics, which indirectly leads to optimization
of the power supply. Passive harmonic filters
for vfd (variable frequency drive) work almost
the same as active harmonic filters. But the
significant difference is that it is used for
small premises as compared to active harmonic
filters. It filters the current wave through an
input reactor, output reactor, shunt reactor, and
capacitor.
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Concluding Note
If you are facing difficulty in choosing between
active or passive harmonic filters, then worry
not because its a common doubt, and everyone
faces this problem. You just need the right
guidance to sail you through this ocean of
doubts. Energy Control System might help you.
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