Step-Up Transformer

What is a Transformer?

◙ Step-Up Transformer  ◙ Step-Up Transformers 
◙ Step-Down Transformers  ◙ TEMCo Step-Down Transformers 
◙ What is a Transformer? ◙ Selection of an TEMCo Transformer 
◙ Low-Voltage Transformers ◙ Buck Boost Transformers 
◙ Three-Phase Transformers ◙ Auto Transformers

Step-Up Transformer Home
Links, Information & Listings
for types of Step-Up Transformers. Access to wholesale pricing!

Step-Up Transformers
Details and further information regarding installation and basic configurations.

Step-Down Transformers
Fundamental data regarding transformers used in step-down applications.

TEMCo Step Down Transformers
A basic description and links to TEMCo transformers recommended for step-down applications.

What is a Transformer?
Essential data about the design and use of a transformer.

How to select a TEMCo Transformer
from a reliable leading American transformer distributing company.

Low-Voltage Transformers
Descriptions and uses of transformers specializing in low-voltage applications

Buck Boost Transformers
This special type of transformer described and explained. Includes links to sites where they can be purchased.

Three-Phase Transformers
Why are there three-phase transformers, and what do they do? How are they different from single-phase?

Auto Transformers
How do auto transformers differ from other transformers? Links to catalog pages included.

What is a Transformer?

ESSENTIAL DATA ON DESIGN AND USES

What is a Transformer? is a simple question to answer, though transformers will come in such a variety one might easily not recognize one on sight.

Transformers are static devices made up of one or more windings, in which those with two or more windings are coupled, and may be manufactured with or without a magnetic core.  They are used in induction of currents,  producing a coupling between two circuits.  Transformers typically change values of voltage and current and are always used in transferring power through electromagnetic induction between circuits at the same frequency. To the left are links to pages o this site that are about various kinds of transformers. One variation is the Auto Transformer.

A Transformer's output (neglecting losses due to resistance or other manufacturing and physical factors)  will be predictably computed by the general formula:
V2/V1=N2/N1

The proportion between N1 and N2 determines the exact final output (V2) as V1 will have to follow the same proportion with V2 as a result.

Simply put, where V equals voltage and N equals number of windings, and V1 and N1 are different than V2 and N2 respectively, we have the formula for establishing the exact specification for winding a Transformer, or determining the transformer you will need to purchase, based on the power you have and the need your equipment or service is designed for.

Example:
You have an incoming voltage (V1) that is 120v. The primary windings (N1) are, say, 200. You add secondary windings (N2) of 400. N2 over N1 equals 400 over 200, or 2.  Therefore, V2, being proportionally increased, would have a simple relationship of V2 to V1 of two to one. The result would be a V2 of 240v.

Another calculation underlies the basis for why I (amperage, or current) drops as voltage rises.  The formula for this is:
P (incoming) = I1V1 = P (outgoing) = I2V2

Since incoming power and outgoing power will always be the same, P does not change.  What this does in effect is to force amperage proportionately lower as voltage increases and the visa-versa.  One can therefore say that this lowered flow would result in a lowered resistance, even though the power, itself, has not changed.

Example:
P (incoming) is 240w.  I1 is 2 amps and V2 is 120v.  If you change the voltage to the figure arrived at in the first computation above, 240v, then P is still 240w and I2 becomes 1 amp instead of 2 amps.  The resulting formula is as follows:
V2/V1 = N2/N1 = I1/I2

The question What is a Transformer? introduces one to a plethora of applications.  They are used to alter or modify electrical flows under a wide variety of circumstances including low to high voltages, high to low voltages, too high or too low local voltages, protective systems for electronics and medical equipment, filters for adverse line phenomena, low voltage applications and others.

Large  Step-Up and Step-Down Transformers  are often specially constructed to stabilize or reduce temperature incurred when resistance in the lines creates heat.  They may be passively cooled through special oil baths, sometimes also having radiating vanes to dissipate heat, or through non-liquid coatings and heat dissipation vanes.  Some applications demand more cooling and will incorporate the use of fans or cooling baths of special gases.

TEMCo can answer any other questions on What is a Transformer? Most major brands of Transformers are carried at TEMCo pricing is very competitive.  One-day delivery is often available on in-stock items. TEMCo will custom build a transformer for you according to your specs.  Study the How to select a TEMCo Transformer page  for planning requirements.

Contractors and individuals who need portable power sources and lighting may also want to check out the Diesel Generators available through TEMCo.

Call (510) 490-2187
(US & International)
 or 1-800-613-2290 (US only)
for prices and information.
Wholesale Pricing Available!

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What is a Transformer?

Transformer Resources:

Isolation Transformers
Isolation transformers of all types, including custom order equipment built to your specifications!

Medical Isolation Transformers
A source for a broad selection of medical grade isolation transformers, including custom order equipment built to your specifications!

Buck Boost Transformers
A wide range of Buck Boost Transformers and brands to select from.

Custom Transformers
Your specific needs can be supplied here with limited
delay and great pricing on custom designed equipment.

Step-Down Transformers
Power Transformers designed to reduce voltage to an optimum range. Descriptive data included.

Step-Up Transformers
Power Transformers designed to increase voltage to an optimum range. Descriptive data included.

AC Line Reactors
Listings of 3 phase devices used as filters rather than for changing voltage.

Acme Transformers
An expansive selection of Power Transformers for all applications.

Hammond Transformers
Primarily dealing in copper-wound transformers.

Jefferson Transformers
All American-made products. Located in Brownsville, Texas.

Static Phase Converters
Critical information regarding the difference between static phase and rotary phase converters. A must for anyone considering these alternatives!

Phase Converter
Read about the technology differences between the types of phase converters available from this top phase converter manufacturer.

Diesel Generators
Access information and pricing on a variety of brands and types of diesel generators designed to fit every need! Custom-built generators can also be ordered. Top Diesel Generator Models available wholesale including PTO Generators and Mobile Light Towers.

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