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Lowest Prices for
Quality Variacs - Guaranteed! Call Toll Free 1-800-613-2290 (US Calls) or 1-510-490-2187 (US & International) Fax 1-510-490-1507 email: info@temcotransformer.com www.TemcoTransformer.com |
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TEMCo - The Best Selling Custom Transformers in America
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State-of-the-Art Variac Transformer Manufacturer Offering Top Quality at Wholesale PricesVariacTEMCo caries a wider range of models, brands and types of variac and offers them a great low wholesale prices. Call Our Variac Specialists Today!TEMCo has experience handling and understanding a
wide range of variac applications and can assist you in choosing a make
and model to bet fit your need. Call our variac specialists today
at 510-490-2187 for assistance in choosing
the correct model to meet your need. About Variac Use and Common ApplicationVariac, or variable voltage transformers, are not widely known or understood, but are fairly common throughout industry. Variacs are used to provide a voltage-adjustable source of AC electricity. Usually they are plugged into a wall outlet, and have a knob-controlled output that can range from 0 volts to about 140 VAC, depending on how the winding is connected. Variacs do not provide isolation from the wall outlet so they are not usually suitable for directly powering low-voltage devices on their own. Common variac applications are tube audio for powering experimental circuits and for equipment testing and repair, and are not usually used as a permanent source of voltage -shifted power. Common Variac Applications
Types Of VariacThere are two of the most common types of variac that are typically seen, the bench models and the open frame types. The bench model contains the winding in a ventilated metal shield, with the control knob on top. The variac sits on the bench top like a soda can sits on a counter top. It has an on/off switch, a fuse, one or more AC outlets, a line cord and sometimes a current or voltage meter. The open frame types are intended for panel mounting in equipment racks or as a part of some larger piece of equipment. Electrical connections and the inductor are exposed, but the operating principles are the same. Variacs are designed for a specific input voltage and frequency, and will not work well with other inputs. Only the output is intended to be variable. How a Variac WorksVariacs work as tapped inductors, where the "tap" is a conductive slider that moves along the length of the inductor. The inductor is shaped like a doughnut, or toroidal transformer with wire wrapped through the center hole and around the toroid. A single layer of enameled covered magnet wire is tightly wound upon the core. Each end of the winding is securely fastened and the entire winding is lacquered locking the winding to the core. The slider is an arm equipped with a carbon contact that rotates on an axle located through the doughnut hole or the axis of the toroid, The enamel insulation of the winding wire is removed where the carbon contact touches the winding, so that the contact forms a circuit through part of the windings. Variacs divide voltage by dividing the impedance between the inputs into two parts. The fraction of the divided input impedance connected to the output determines the output voltage. Using a variac, almost all the power consumed is delivered to the load connected to the output. With a variac there is some heating due to the resistance of the winding wire, and the magnetic coupling between the input and output is far from being perfect. But a variac is much more efficient than one might expect Call TEMCo - Your Variac Specialists*Custom Variac Transformer Voltage Combinations Available* Contact our team at TEMCo Transformer at 510-490-2187 to get your quote, place your order and arrange for shipping. |
 We Supply A Wide Variety of High Quality Power Variac Transformer Models  Variac Transformer  Variac Transformer Solution |
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TEMCo Transformer Manufacturer Distribution: The Custom Transformer Manufacturer Supplier of Choice for Electricians and Manufacturers. |
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TEMCo Transformer Manufacturer Distribution: High Quality, Efficient, Fast Turnaround of Custom Transformers Manufactured to your Specs!. |
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Quality Companies Choose TEMCo Transformer -
TEMCo's Customers Include:
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TEMCo has experience manufacturing electrical products since 1968. TEMCo is a transformer manufacturer supplier you can trust - a member of the Better Business Bureau. We use the latest proven technology to spec manufacture high quality industrial grade transformers and other electrical products. All our products are built to last using the highest quality standards using only the highest quality supplies. As a result, TEMCo electrical products have a long operational life, lasting many years under proper use. All models are backed by our quality warranty, offering heavy duty quality at a great price. |
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We also accept Wire Transfer, Money Orders, etc. |
And by other professional trucking companies. |
TEMCo US + International Phone #:
1-510-490-2187
TEMCo US Only Phone #: 1-800-613-2290
TEMCo Transformer Manufacturer Distribution is currently looking for new resellers.
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Here are a few other brands of quality transformers that we also carry:
Acme Transformers • K-Rated Transformers • Three Phase Transformers • Distribution Transformers • GE Transformers • Pad-Mounted Transformers • Step Up Transformers • Step Down Transformers • Buck Boost Transformers • High Voltage Transformers • Isolation Transformer • Electrical Transformer • Single Phase Transformer • Three Phase Transformer • Hammond Transformers Single Phase Transformers • Three Phase Transformers • Isolation Transformers • Buck Boost TransformersOther Quality Products: Diesel Generator • Diesel Power Generators • Diesel Generator Sets • Power Generators • Onan Diesel Generators • Variable Frequency Drive • Soft Start Drives • Motor Control
Capacitor for Motor: Start Cap • Run Capacitor • Starting Capacitor • Air Conditioner Capacitor • Motor Capacitor • Replacement Capacitor • Test Capacitor
Pump Motor • Motors For Pump • Pool Motors • Pump Motors • Spa Motors • Pool Pump Motors • Washer Pump Motors • Water Pump Motors • Hydraulic Pump Motors • Electric Pump Motors • Oil Pump Motors • Jacuzzi Motors • Pump Motors Replacement • Swimming Pool Motors • Jet Pump Motors • C-Face Motors • Electricalpowertransformer Main Index
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