Variac Transformer Home                          Resources and information on variac transformers are listed. Learn about the different applications and what a variac transformer can do.

3 Phase Variac Transformer                         A 3 phase variac transformer will have 3 windings that are connected in a sequence that will match the incoming power. This will transform the power companies voltage to the level that is needed. 

Variac Transformer Amps                                   is also called current as it is the amount of electric energy that is flowing through the variac transformer. The amps is the amount of electricity that is pulled from the voltage in the line.

Variable Voltage                Learn how to adjust output voltage from 0 to 117 percent of the units input voltage. A variac transformer would be the way to go. 

Variac Wiring                     The inductor on a variac transformer is shaped like a doughnut with wire that is wrapped through the center hole. Due to the resistance of the winding wire, heating can sometimes be present.  
 

Single Phase Variac Transformer                       This type of variac transformer is mainly used on lighting and heating loads. They can either be air cooled or oil cooled.
 

Isolation/Variac Combination                     An isolation/variac combination type of transformer will isolate sensitive equipment from electrical noise and interference from the AC power line. It is used quite often in testing functions.  

Variac Auto Transformer                       This type of transformer will either act like a step-up or a step-down transformer. A variac auto transformer will not provide isolation from any line current.

Variac Transformer Amps

Variac transformer amps will be discussed thoroughly on this page as to what amps are and how they work with a variac transformer. First of all, amps is the amount of electrical current that flows through the variac transformer. The formula for Amps is I=V/R with I=amps, V=voltage and R=resistance.

Variac transformer amps is also called current which is the amount of electrical energy that flows through an appliance at any given time. This measurement of the variac transformer amps is expressed in units which are called amperes which we usually shorten to amps. A good example to show what variac transformer amps are is to think of a water hose. When you first turn on the water to the hose, water is forced through the hose which is like voltage.  The amount of water that is running through the hose is like the variac transformer amps. It is the amount of flow that comes through the hose. If the hose is running full force, with very hard strength, you are using a lot of watts but if you were to fill a glass up with water, the strength would be lessened and therefore you would be using less watts.  The formula for this would be: 1 watt=1 amp multiplied by 1 volt and 1 amp=1 watt divided by 1 volt.

Using a smaller piece of equipment will require less variac transformer amps than if you were using a larger piece of equipment. For instance, a large electric motor may draw 100 variac transformer amps while a small heating element may only draw 10 variac transformer amps. Both of these applications still tap into the same 110 voltage line, but the variac transformer amps are completely different. Variac transformer amps must be controlled to the proper level for each application to prevent electrical lines from overheating or short circuiting.

Various models of variac transformer amps:

400 Hz Variac Transformer - Single Phase Models
Input 120 Volts - 400 Hz
Open Frame Panel Mount
May be operated at 60 Hz for Input BELOW 55 Volts

 400 Hz Variac Transformer - Three Phase - Open Delta Models
Input 120 Volts/Delta - 400 Hz
Open Frame Panel Mount
May be operated at 60 Hz for Input BELOW 55 Volts

400 Hz Variac Transformer - Three Phase - WYE Models
Input 120/208 Volts - 400 Hz
Open Frame Panel Mount
May be operated at 60 Hz for Input BELOW 55 Volts

To find out more about variac transformer amps, contact a TEMCo variac transformer amp specialist and they can help you with all your applications. TEMCo has experience in a wide range of variac applications and they can assist you in selecting a make and model to best fit your needs. Give them a call at 1-510-490-2187.
 

Remember to bookmark us:

Variac Transformer Amps
 

Variac Applications         Some of the most common applications for the variac transformer are listed and reviewed. They are mainly used in quality control testing.

TEMCo Variac Transformers                    TEMCo has been in business since 1968 supplying and manufacturing various brands and models of variac transformers. Quality, performance and reasonable prices is what you will find at TEMCo.

Other Transformer Resources:

Custom Transformers is a unique website that offers information and resources on custom transformers.

Power Transformers is where you can explore the different types of power transformers on the market today.

TEMCo Step-Up Transformers are manufactured with the highest quality materials at a cost effective price.