ACME TRANSFORMER TYPES
AC Line Reactors
Acme Line Reactors prevent equipment failure and costly downtime.
It protects your sensitive equipment from harmful line disturbances
and adds years to your equipment.
AC Refrigeration & Appliance
Transformers
The transformers in this section are autotransformers
designed to change a wide range of voltages to the standard
motor voltages for domestic appliances, air conditioners
and related equipment.
Transformer Accessories
Acme offers a wide array of accessories for your transformers such
as
lug kits, space parts, standard taps, thermal switch kits, wall
mounting brackets and weather shields.
Buck-Boost Transformers
These
transformers provide
tremendous capabilities and flexibility in KVA sizes and
input/output voltage combinations. Basically, you get 75 different
transformers... all in one convenient package.
DC Power Supplies
Acme, with its new line of DR series, offers you an
innovative solution for many of your control applications.
Acme DC power supplies provide you with optimal performance with the
least impact on installation time and space.
Drive Isolation Transformers
The Acme Drive Isolation Transformers are
specifically designed to accommodate the
special voltages and KVA sizes unique to AC
and DC motor drive applications.
Custom Transformers
When you need a custom transformer, Acme
is a clear choice. Our reputation in high-quality specialized
transformers offers the finest product and the best service in
the industry.
We at Acme Transformers are dedicated to providing you with the highest quality products and service. With our experienced staff, and engineers, we are committed to providing you with the best .
When selecting an Acme Transformer, it is critical that you evaluate your decision from every aspect before selecting a unit. Here are some important factors that will help when selecting the transformer that best suites your needs.
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Capacity - The KVA rating of the transformer.
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Voltage Rating - Primary and secondary voltage of the transformer.
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Insulation System - The sum of the maximum ambient temperature, plus the average winding temperature rise, plus the differential between the average winding temperature rise and the highest temperature of the winding.
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Core and Coils - Wound cores or stacked laminations (copper or aluminum conductors).
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Winding Insulation System - Open-wound, vacuum pressure impregnation, vacuum pressure encapsulated, encapsulated, and cast coil.
Some of the
larger common sizes of dry-type transformers that are available
include 500 through 7,500 KVA. These transformers are usually
fed by medium-voltage power systems (12.47KV, 13.3KV, or 13.8KV and
have secondary voltage rating of 480V, three-phase).
When manufacturing dry-type transformers, Acme has several different
construction methods making installation in many different
applications possible. The installation of the windings below
indicate the many different types that Acme has to offer.
Open Wound
The open wound method is
Acme's standard process, which follows a dip and bake construction
technique. The conductor coils are preheated and dipped in
varnish at a higher temperature. The coils are baked, which
cures the varnish.
Vacuum
Pressure
A varnish coating is applied in interchanging cycles of pressure and
vacuum, using a polyester resin for the vacuum pressure. The
coils are then cured in an oven. This process is better than
standard methods, because it includes pressure in addition to
vacuum, which allows better penetration of the varnish in the
transformer coil resulting in the transformer having increased
resistance to corona.
Vacuum
Pressure Encapsulated
Vacuum pressure encapsulated transformers offer better protection
from harsh and wet environments. Because several dip processes
are added to the construction process, this method is superior to
the vacuum pressure technique.
Encapsulated
Encapsulated transformers are standard open-wound distribution
transformers. They are encased in an electrical grade silica and
epoxy and are totally enclosed in a heavy-duty style enclosure.
Cast
Coil (Molded Epoxy Sealing)
By a special molding process, these coils are
encapsulated in epoxy. Resin is used to solidly cast the
transformer coils under a vacuum in a mold. This manufacturing
technique locks the windings in a strong epoxy resin with high
dielectric strength, which protects the transformers in severe
operating environments.
It is important
for you to understand where to use each winding insulation described
above due to different environmental needs. When considering
overall cost of a project, your final selection can have a strong
impact. For example, a cast coil transformer can cost 50% more
than a vacuum pressure transformer.
You should use a vacuum pressure type transformer when improved
resistance to corona (electrical discharges caused by the field
intensity exceeding the dielectric strength of the insulation) and
increased mechanical strength of windings are required.
When using a transformer where additional coil strength
and protection is needed (such as in unforgiving environments like
chemical process plants, construction material factories, and
outdoor installations), cast coil transformers should be used. Additionally, cast coil transformers have
improved abilities to withstand heavy electrical surges such as
recurring, but short duration overloads experienced by transformers
in the industrial field.
When the engineer has a choice between the vacuum pressure or the
vacuum pressure encapsulated transformer, the cast coil transformer
is typically accepted as the best transformer in harsh
environments. There are some manufacturers that indicate that the cast
resin in the cast coil transformer can be detrimental to the life
of the transformer. The co-efficient of expansion of the epoxy is
less than the copper windings. The cyclical expansion and
contraction with the heating and cooling of the coils can eventually
crack the resin. These manufacturers indicate that the epoxy
encapsulation can better deal with this expansion and contraction,
and, in turn, offer longer life.
When designing electrical distribution systems, the electrical
design engineer must always evaluate cost implications and system
reliability. In order to make the proper transformer
selection, you must be armed with the most accurate information.
For over eighty-five years, Acme has been manufacturing transformers for industrial, commercial and OEM application. Acme is an industrial leader offering superior service, quality products and technical service.
Worldwide Shipping
We can ship transformers from our regional warehouses to speed up
the shipping time frame. We also offer fast turnaround on custom
built transformers, built to your needs.
Large Inventory
Because we both manufacture transformers and carry all the
brands, you can rely on us as your one-stop source for high quality
transformers at wholesale prices. Because of this, we offer one of
the largest inventories of transformers. What other companies have
to custom build, we probably keep in stock. Call to order today!
AC Line Reactors, AC Refrigeration & Appliance Transformers, Transformer Accessories, Buck-Boost Transformers, DC Power Supplies, Drive Isolation Transformers, Industrial Control Transformers, Low Voltage Lighting Transformers, Panel-Tran Zone Power Centers, Power Conditioning,
How to Select an Acme Transformer
ACME TRANSFORMER TYPES
Dry Type Distribution Transformers
Acme offers a wide selection of Dry Type Transformers
from single-phase to commercial grade three-phase and low-noise
transformers.
Industrial Control Transformers
The Acme Industrial Control Transformers
offer the most advanced and versatile design concepts available to
the marketplace today. They are designed to meet Acme’s rigid
standards for mechanical durability as well as surpass agency and
industrial
electrical standards.
Low Voltage Lighting Transformers
& Power Supplies
Acme’s Low Voltage Lighting
products provide a safe, long lasting,
highly reliable power source; a perfect
selection for landscape applications
as well as interior use.
Low voltage lighting is a creative medium with unlimited application
possibilities.
Non-Linear Load Isolation
Transformers are
available in sizes ranging from 30 through 225 KVA with copper
windings and a variety of other design options and accessories.
Acme harmonic mitigating transformers offer you reduced transformer
heat, reduced voltage distortion due to
third order harmonics and higher efficiency.
Panel-Tran Zone Power Centers
are a pre-wired combination
of a primary breaker disconnect, dry-type shielded transformer,
secondary breaker disconnect and a secondary power panel, all in one
convenient package.
By not having to assemble, mount and wire these components, you save
money, space and time. All you have to do is add the breakers and
you are ready to go.
Power Conditioning
Acme True-Power Products consist of
specialty
designed ferroresonant
transformers. Although ferroresonant transformers
have been an economical solution to power problems for many years,
it took the skills of Acme’s highly regarded engineering
staff to refine it to meet today’s exacting requirements.