Should You Choose An EI Transformer Or Not?

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SHOULD YOU CHOOSE AN EI TRANSFORMER OR NOT?
Working on the principle of Faradays law of
induction, a transformer basically serves the
function of converting electrical energy from the
present value to the value that is required.
But, a transformer is not only of a single type.
There are a multitude options available when it
comes to choosing a transformer, such as power
transformers, isolation transformers, toroidal
transformers, EI transformers, SMPS
transformers, and many more. Yet, all of them
perform the basic function of transmitting
power, signal, or data from one point to
another, each differing from the other in only a
few aspects that make them unique. The basic
working of a transformer A transformer links
together two or more electrical circuits, using a
common oscillating magnetic circuit that is
produced by its core. This becomes possible as
it operates on the principle of electromagnetic
induction in the form of mutual induction,
wherein the coil of wire magnetically induces a
voltage into another coil located in close
proximity. How transformers enable long-distance
power distribution With the above-mentioned
Faradays law of magnetic induction, a
transformer is capable of stepping up or down
voltages to any level required. The power
converted can be distributed across vast
distances using a grid of pylons and cables. The
power that is to be distributed across such large
distances is first converted to a much higher
level, and then reduced to a lower, safer, usable
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voltage as it reaches the destination, where it
can be used to power up the electrical equipment
in residential, commercial, and industrial
applications. What makes an EI transformer
unique? As mentioned above, transformers are
available in a variety of options, which makes
it very important for you to choose the most
suiting transformer for your particular
application. Here, in this blog, well speak
about one of the most popularly used
transformers today the EI transformer. The EI
transformer, just like any other transformer,
consists of a primary winding that produces
magnetic flux in the core when connected to the
electrical source, and a secondary winding that
outputs the secondary current generated by the
magnetic flux in the core. The transformer core
provides a low-reluctance path through which the
magnetic flux can move from the primary to the
secondary, creating a closed magnetic circuit. So
then, what is it that makes it unique versus
other kinds of transformers? As the name itself
suggests, in the EI transformer, the core is in
the shape of an E and an I, stamped from
sheets of thing grain-oriented electrical steel,
stacked to create the core. The primary and
secondary windings are wound on bobbins, with
multiple bobbins being placed on spindles and
spun in order to apply the windings. This unique
method is what makes it different, and helps
with automation that reduces the manufacturing
time, and provides insulation between the
windings and the core. The ease of construction
also makes EI transformers very economical to
manufacture. Choosing an EI transformer over
other transformer types With the unique
construction, and the cost-effectiveness
associated with an EI transformer, it certainly
seems to be the best option. But, this doesnt
come without any drawbacks. The major drawbacks
that come with an EI transformer are that it
comes with a disturbing hum (because of the loose
laminations vibrating at the fundamental
frequency), and that it is large in size. But,
if these drawbacks can be disregarded, EI
transformers are the best choice for an
easy-to-manufacture, economical, easy-to-mount
transformer that have greater primary
resistance, and low coupling capacitance, thus
blocking high frequency common mode noise from
the main AC. All in all, EI transformers are an
economical solution that meet many power
conversion needs.
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After considering all of the above, if youre
looking to purchase an EI transformer for your
application, you can always approach Miracle
Electronics, the finest EI transformer
manufacturer in India, whose transformers are
extremely durable, come with superior wiring,
varnishing, and connection terminators, proving
to be highly efficient, providing excellent
regulation with minimal temperature rise. You
can also choose to have your transformers
customized, and no matter what you choose to
purchase, every EI transformer available here is
RoHS, High, and REACH compliant.