TEMCo Standard and Custom Transformer Manufacturer

TEMCo is a Transformer Manufacturer You Can Trust - a Member of The Better Business Bureau. TEMCo  Is an Accredited Member of the Better Business Bureau.  Offering Stock and Custom Transformers.


TEMCo is a Standard and Custom Transformer Manufacturer you can trust - a member of the Better Business Bureau.

Potential Transformer

Quality Built Standard and Custom Potential Transformers
Your search for high quality, obscure, hard to find, or standard power potential transformers is over!

Lowest Prices for Quality Potential Transformers - Guaranteed!
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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


Order Transformer Transformer Selection Guide Custom Transformers Dry-Type Transformers Auto Transformers Control Transformers Step-Up Transformers Step-Down Transformers Harmonic Cancellation Isolation Transformers K-Factor Rated Transformers 3-Phase Transformers European Voltage Transformers Drive Isolation Transformers High Voltage Transformers Epoxy Encapsulated NEMA 4 Transformers Weatherproof NEMA 3R Transformers Transformers AC Transformer Voltage Transformer Buy Transformer New Transformer Output Transformer Transformer KVA Converter Transformer Line Transformer Toroidal Transformer Transformer Wiring Transformer Circuit Variable Transformer Pole Transformer Transformer Pad VA Transformer WYE Transformer Potential Transformer Variac Transformer Protection Transformer Rating Sunbelt Transformer Pacific Transformer Jefferson Transformer Electric Transformer Power Transformer Transformer Sizing Transformer Rectifier Center Tap Transformer Pad Mounted Transformers About US - TEMCo Transformer Manufacturer Transformer Manufacturer Home



transformer guide
Small kVA 3 Phase Transformers Guide


TEMCo - The Best Selling Custom Potential Transformers in America

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P R O D U C T S
O F F E R E D

Transformer Models
TEMCo Transformer manufactures a wide variety of high quality stock and custom transformers. Trust TEMCo as your transformer manufacturer supplier.

Phase Converters
TEMCo Rotary Phase Converters provide balanced 3-phase power converted from a 1-phase power source.

Motor Generator Sets
TEMCo Motor Generator Sets are used to provide load isolation, frequency conversion, and phase conversion.

Electric Motors
TEMCo carries thousands of models and brands of electric motors and drives such as Baldor Motors, WEG and Leeson at wholesale prices!

Electric Generators
TEMCo carries thousands of models and brands of electric generators such as Robin Generators, Pow'R Gard and Baldor Generators at wholesale prices!

Variable Frequency Drives
TEMCo caries a range of high quality VFDs are wholesale prices. Applications range from controlling speed, torque, breaking, direction, multi-speed, etc.

Custom Transformers
TEMCo offers highest quality custom transformers fast! 5-day turn around on most models. Call our Transformer Manufacturer Specialists with your specs. We will give you a quote and get your custom transformer order started today! 510-490-2187.


State-of-the-Art Potential Transformer Manufacturer Offering Top Quality at Wholesale Prices

Potential Transformer

In environments where voltages above 120v are to be measured, potential transformers are commonly used in metering applications. They are essentially a step-down transformer where the secondary (low voltage side) will be at a suitable range for the input ratings of the meter. The primary (high voltage side) is at the main line operation voltage. On a three phase system, one per phase may be used to measure the three phase system voltage.
 

Two Types of Potential Transformer

1.) For “Wye” connected systems: Suitable for connection between phase and neutral

2.) For “Delta” connected systems: Suitable for connection between phases

For proper monitoring, correct selection of Potential Transformers is important.  For Wye systems, the Potential Transformers primary rating should equal the system line-to-neutral voltage or the nearest higher standard size.  For Delta systems, the Potential Transformers primary rating should equal the system line-to-line voltage.  For all system configurations, the Potential Transformers secondary rating must be within the rated full scale range of the meter voltage inputs, typically 120 V.

Potential transformers also commonly utilize fusing on the primary side (high voltage side) to protect the transformer itself as well as the metering equipment. These fuses are sometimes mounted on integral fuse holders.

What Makes a Potential Transformer Unique ?

Potential transformers are used for many applications including to provide accurate voltages for meters used for billing industrial customer or utility companies.  A potential transformer is like a conventional transformer having primary and secondary windings.  The primary winding is connected directly to the power circuit either between two phases or between one phase and ground, depending on the rating of the transformer and on the requirements of the application.

Potential transformers are used to scale down the line to neutral voltage of a Wye system or the line-to-line-voltage of a Delta system to the rated input scale of the meter, which is typically 120V.  Correct selection is very important when purchasing a potential transformer for proper monitoring.  For the Wye systems, the primary rating should equal the system line-to-neutral voltage or the nearest higher standard size.  For the Delta systems, the potential transformer primary rating should equal the system line-to-line voltage.  In all configurations the secondary rating must be within the rated full scale range of the meter voltage inputs.

Potential Transformer Step Up or Step Down Voltage & Provide Electrical Isolation

Due to potential transformers’ ability to step up or step down voltage and current, and provide electrical isolation they can be used to connected electrical instrumentation systems to high-voltage, high current power systems. 

Using A Potential Transformer With a Voltmeter

If you want to accurately measure the voltage of a 13.8 kV power system, a very common voltage in industry, you would use a potential transformer because designing a voltmeter capable of directly measuring 13,800 volts AC would not be an easy task.  Just the safety hazard of bringing 13.8 kV conductors into an instrument panel would be very dangerous.  But by using a potential transformer to precisely step-down the 13.8 kV down to a safe level of voltage at a constant ratio, and isolating it from the instrument connections adding an additional level of safety to the metering system the measurements can be done safely and accurately.

Now the voltmeter can read a precise fraction, or ratio, of the actual system voltage, its scale set to read as though it were measuring the voltage directly.  These potential transformers keep the instrument voltage at a safe level and electrically isolates if from the power system.  There is no direct connection between the power lines and the instrument or instrument wiring.  To aid in precise voltage regulation, loading is kept to a minimum and the voltmeter is made to have high input impedance so as to draw as little current from the potential transformer.  In many cases a fuse is connected in series with the potential transformer primary winding, for safety and ease of disconnecting the potential transformer from the circuit.

In addition to using a potential transformer to allow for safe metering of power there are also many other popular potential transformer applications. 

Call Our Potential Transformer Specialists Today!

Let our potential transformer specialists use their many years experience to assist you in selecting and ordering your potential transformer today.  Our staff are standing by and happy to help.

 *Custom Potential 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.

Potential Transformer

Potential Transformer






Potential Transformers

Potential Transformers






Potential Tranformer 1

We Supply A Wide Variety of High Quality Power Potential Transformer Models

TEMCo Transformer Manufacturer Distribution: The Custom Transformer Manufacturer Supplier of Choice for Electricians and Manufacturers.

Worldwide Power Transformers Manufacturer

Quick Nationwide and International Shipping from Regional Warehouses

TEMCo Transformer Manufacturer Distribution: High Quality, Efficient, Fast Turnaround of Custom Transformers Manufactured to your Specs!.


Call for potential transformer information. Potential transformers manufactured for sale throughout the U.S. and Internationally.
 

Quality Companies Choose TEMCo Transformer - TEMCo's Customers Include:


 

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.

TEMCo is an Accredited Member of the Better Business Bureau.  Offering Stock and Custom Transformers.TEMCo is a Stock and Custom Transformer Manufacturer You Can Trust - a Member of The Better Business Bureau.


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Transformer Manufacturer

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you asap.

Order your transformer, three phase converter, motor, or generator with VISA, Master Card, American Express, etc., Today!

We will ship it to you asap! or We will ship your transformer, power generator or motor asap!

We also accept Wire Transfer, Money Orders, etc.

And by other professional trucking companies.


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TEMCo US + International Phone #: 1-510-490-2187
TEMCo US Only Phone #: 1-800-613-2290


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Small kVA 3 Phase Transformers Guide

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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 Transformers

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