Ground Transformer Quality Built Standard and Custom Ground Transformers Your search for high quality, obscure, hard to find, or standard ground transformers is over! Lowest Prices for Quality Ground Transformers - 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 Order Transformer • Medical Isolation Transformer • Medium Voltage Current Transformer • Polyphase Transformer • Potted Transformer • Pulsed Transformer • VPI Transformer • Wound Core Transformer • Zig Zag Grounding Transformer • 3-Phase Auto-Transformer • Zig Zag Transformer • Double Shielded Transformer • Pool Transformer • Pool Light Transformer • Spa Transformer • Ground Transformer • Water Transformer • Transformer Load • Commercial Transformer • Copper Transformer • Light Transformer • Outdoor Transformer • General Purpose Transformer • Harmonic Mitigating Transformer • TP-1 Transformer • Energy Star Transformer • Tap Switching Transformer • Tap Transformer • Multi Tap Transformer • Transformer Tap Changer • Vacuum Pressure Encapsulated Transformer • Vault Transformer • Floor Transformer • Constant Voltage Transformer • Single Winding Transformer • Unit Transformer • Auxiliary Transformer • Excitation Transformer • Harmonic Filter • Constant Voltage Regulator • Power Converter • Step Up Converter • Transformer Manufacturer Home TEMCo - The Best Selling Custom Transformers in America . P R O D U C T S O F F E R E D Transformer Home TEMCo Transformer manufactures a wide variety of high quality stock and custom transformers. Trust TEMCo as your transformer manufacturer supplier. Phase Converter TEMCo Rotary Phase Converters provide balanced 3-phase power converted from a 1-phase power source.  Also read about Static Phase Converter and CNC Phase Converters. Motor Generator Set TEMCo Motor Generator Sets are used to provide load isolation, frequency conversion, and phase conversion. Electric Motor TEMCo carries thousands of models and brands of electric motors, motor control, and drives such as Baldor Motors, WEG and Leeson at wholesale prices! Power Generator 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 Drive TEMCo caries a range of high quality VFDs are wholesale prices. Applications range from controlling speed, torque, breaking, direction, multi-speed, etc. Custom Power 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. More Transformers TEMCo offers the widest range of stock power transformer models.  Read about additional power transformer types and find the type you require today.   State-of-the-Art Stock & Custom Ground Transformer Manufacturer Offering Top Quality at Wholesale Prices Ground Transformer A Ground Transformer is a transformer which is used in conjunction with an ungrounded or isolated system to create a return path for ground fault currents.  The design of a Ground Transformer is slightly different than that of a distribution transformer because it must meet several objectives as follows: The ground transformer must shield conductors and insulation from heat deterioration while carrying fault current. The ground transformer must not exceed temperature ratings while carrying neutral and continuous phase currents.   With the first objective above, a Ground Transformer must carry fault current for durations beyond the 2 second limitation, which is the time limitation often found with standard distribution transformers.  The time period a Ground Transformer might carry fault current can exceed 10 seconds or even longer.  The inherent design of a Ground Transformer allows this extended time period while maintaining transformer temperature and ensuring the transformer remains below the defined critical, thermal, limitations. Inherent Design Benefits of Ground Transformers The design of a Ground Transformer offers many inherent benefits over standard distribution transformers as follows: The Ground Transformer aptly handles fault heating without insulating oil for heat transfer during the fault. The ground transformer uses steady cooling to calculate magnetizing current and HV 12R loss from the energized core only.  The ground transformer reads a zero sequence fault with a return path to the network.  This, in turn, impresses the fault current equally, and simultaneously, on all three legs. The ground transformer offers quality copper construction, which allows maximum strength to cross section ratio.  This results in the ability to successfully combat the forces generated.  The ground transformer's utilization of copper creates a higher, thermal, capability resistance. One Type of Ground Transformer - The Isolation Transformer One type of Ground Transformer is the isolation transformer, which is utilized for a variety of power source tasks.  One such task is allowing the passage of AC signals while simultaneously blocking DC signals.  An isolation transformer can also be used to block interference from ground loops.  Used in conjunction with electrostatic shields, isolation transformers are often found in laboratories, computer centers, and other environments that utilize sensitive equipment. Highest Quality Ground Transformers Whatever type of Ground Transformer you are looking for; we carry a huge selection of the top brands.  Manufacturers like Acme, Marcus, GE, Federal Pacific, and TEMCo’s own custom line of ground transformers.  TEMCo is your one stop shop for the highest quality ground transformers available on the market today.  Let our ground transformer specialists help you select the best ground transformer for your power source needs.  Contact our team at 1-510-490-2187 or 1-800-613-2290 for the best prices on ground transformers with fast, low, shipping rates. Call Our Ground Transformer Specialists Today! Remember to bookmark us: Ground Transformer Ground Transformer The inherent design of a ground transformer allows this type of transformer to carry fault current for up to 10 seconds or longer. We Supply A Wide Variety of High Quality Ground Transformer Models from Top Manufacturers. TEMCo Transformer Power Manufacturer Distribution: The Custom Transformer Manufacturer Supplier of Choice for Electricians and Manufacturers. Quick Nationwide and International Shipping from Regional Warehouses TEMCo Transformer Power Manufacturer Distribution: High Quality, Efficient, Fast Turnaround of Custom Transformers Manufactured to Your Specs! Call for ground transformer information.  Ground 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. Ordering is as easy as 1, 2, 3. 2. We Accept Visa, Discover American Express, Master Card. 3. We'll ship your order to you asap. or We also accept Wire Transfer, Money Orders, etc. And by other professional trucking companies. RFQ and Order Fax: (510) 490-1507 We appreciate feedback, send us email us at info@temcotransformer.com please include a phone # to reach you. 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. If you are a qualified reseller, call for a TEMCo Transformer reseller application. Order Transformer • Acme Transformer Models Page 1 • Acme Transformer Models Page 2 • Hammond Transformer Models Page 1 • Hammond Transformer Models Page 2 • Hammond Transformer Models Page 3 • More Transformer Types Page 1 • More Transformer Types Page 2 • Transformer Selection Guide • Transformers • AC Transformer • Voltage Transformer • Buy Transformer • New Transformer • Output Transformer • Transformer KVA • Converter Transformer • Line Transformer • Toroidal Transformer • Transformer Wiring • 2 Phase Transformer • Transformer Circuit • Variable Transformer • Pole Transformer • Transformer Pad • VA Transformer • WYE Transformer • Potential Transformer • Transformer Protection • Variac • 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 • Custom Transformers • Dry-Type Transformers • Auto Transformers • Control Transformers • Indoor TMC Enclosed Control Transformers • Indoor TMO Open Control Transformers • Indoor TMTB Enclosed Control Transformers • Copper Transformers • Energy Star, TP1 Rated Transformers • Step-Up Transformers • Step-Down Transformers • Harmonic Cancellation • Isolation Transformers • K-Factor Rated Transformers • 3-Phase Transformers • European Voltage Transformers • European Voltage 3 Phase 60Hz Transformers • European Voltage 3 Phase 50Hz Transformers • Drive Isolation Transformers • High Voltage Transformers • Epoxy Encapsulated NEMA 4 Transformers • Weatherproof NEMA 3R Transformers • Transformer Manufacturer • About US - TEMCo Transformer Manufacturer • TEMCo Privacy Notice • Oil Filled Transformers • Voltage Regulator • Automatic Voltage Regulator • DC Power Supply • PDU • Rack PDU • Power Conditioner • Power Line Conditioner • Load Center • Switchgear • Voltage Converter • 2 Phase Transformer • Power Distribution • Industrial Transformer • Replacement Transformer • Insulation Transformer • Micron Transformers • Westinghouse Transformer • Power Supply Transformer • Instrument Transformer • Pulse Transformer • Substation Transformer • Furnace Transformer • About US - TEMCo Transformer Manufacturer • Transformer Manufacturer Home 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 Other Quality Products: Diesel Generator • Diesel Power Generators • Diesel Generator Sets • Power Generators • Onan Diesel Generators • Variable Frequency Drive • Soft Start Drives • Motor Control • PTO Generator • Mobile Light Tower • Standby Generator Power Transformer • GPU Power • Harmonic Cancellation • Automatic Voltage Regulator • DC Power Supply • PDU • Rack PDU • Power Conditioner • Power Line Conditioner • Load Center • Switchgear • Voltage Converter • Combination Starter • Motor Starter • Disconnect Switch • Magnetic Starter • Oil Filled Transformer • Voltage Regulation • 400Hz  • 50Hz  • 60Hz • Aircraft Power Unit • Energy Storage Capacitor • Regulator • Power Supply • Surge Protector • Uninterruptible Power Supply • Power Regulator • Switching Power Supply • Regulated Power Supply • Voltage Stabilizer • Switching Regulator • Shunt Reactor • Recloser • UPS • Convertidores de Fase • Variable Frequency Drive • 3 Phase • Step Up Transformer • Control Transformer • Pad Transformer • Pole Transformer • High Voltage Transformer • Leeson Motor • Weg Motor • Baldor Motor • Toroidal Transformer • Generator Head Sets • Distribution Transformer • Baldor Generator • Pulse Transformer • Winco Generators • Dry Type Transformer • Motor Servo  • Motor Controller  • Pulse VFD  • Phase Shifting Transformer  • Variable Speed Drive  • Circuit Breaker  • PTO Generators  • Power Generator  • Electric Motor  • Onan Diesel Generator Power Transformer  • Motor Control  • Isolation Transformer  • Step Down Transformer  • Three Phase Transformer  • Voltage Transformer  • New Voltage Transformers  • AC Transformers  • Output Transformer  • Custom Transformer  • Variac Transformer  • Variacs  • Voltage Regulator  • Circuit Breaker Panel  • Rectifier  • Electric Motor  • Power Generator  • Frequency Converter  • Motor Generator  • Ship Port Electrical Power  • Cold Ironing  • Aircraft Ground Power Unit  • GPU  • Ground Power Unit  • Line Conditioner  • Industrial Generator  • Small Generator  • Home Generator  • Transfer Switch  • Generator Transfer Switch  • Natural Gas Generator  • Inverter Generator  • Propane Generator  • Wind Generator  • 3 Phase Generator  • Phase Converter  • Portable Generators  • Portable Generator  • Standby Generators  • Power Generators Dir  • Electric Generator  • Mobile Light Towers  • Diesel Generator Set  • Diesel Generator  • PTO Generator  • Motor Control  • VFD  • Power Converter Sales throughout the USA & Internationally Remember to bookmark this page! • Feel free to add a link to us! Site content Copyright 1999-2009 TEMCo Stock & Custom Transformer Manufacturer Supplier   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

Order Transformer • Medical Isolation Transformer • Medium Voltage Current Transformer • Polyphase Transformer • Potted Transformer • Pulsed Transformer • VPI Transformer • Wound Core Transformer • Zig Zag Grounding Transformer • 3-Phase Auto-Transformer • Zig Zag Transformer • Double Shielded Transformer • Pool Transformer • Pool Light Transformer • Spa Transformer • Ground Transformer • Water Transformer • Transformer Load • Commercial Transformer • Copper Transformer • Light Transformer • Outdoor Transformer • General Purpose Transformer • Harmonic Mitigating Transformer • TP-1 Transformer • Energy Star Transformer • Tap Switching Transformer • Tap Transformer • Multi Tap Transformer • Transformer Tap Changer • Vacuum Pressure Encapsulated Transformer • Vault Transformer • Floor Transformer • Constant Voltage Transformer • Single Winding Transformer • Unit Transformer • Auxiliary Transformer • Excitation Transformer • Harmonic Filter • Constant Voltage Regulator • Power Converter • Step Up Converter • Transformer Manufacturer Home

TEMCo - The Best Selling Custom Transformers in America

. P R O D U C T S O F F E R E D Transformer Home TEMCo Transformer manufactures a wide variety of high quality stock and custom transformers. Trust TEMCo as your transformer manufacturer supplier. Phase Converter TEMCo Rotary Phase Converters provide balanced 3-phase power converted from a 1-phase power source.  Also read about Static Phase Converter and CNC Phase Converters. Motor Generator Set TEMCo Motor Generator Sets are used to provide load isolation, frequency conversion, and phase conversion. Electric Motor TEMCo carries thousands of models and brands of electric motors, motor control, and drives such as Baldor Motors, WEG and Leeson at wholesale prices! Power Generator 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 Drive TEMCo caries a range of high quality VFDs are wholesale prices. Applications range from controlling speed, torque, breaking, direction, multi-speed, etc. Custom Power 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. More Transformers TEMCo offers the widest range of stock power transformer models.  Read about additional power transformer types and find the type you require today.	State-of-the-Art Stock & Custom Ground Transformer Manufacturer Offering Top Quality at Wholesale Prices Ground Transformer A Ground Transformer is a transformer which is used in conjunction with ungrounded or isolated systems to create a return path for ground fault currents.  The design of a Ground Transformer is slight different than that of a distribution transformer because it must meet several objectives as follows: The ground transformer must shield conductors and insulation from heat deterioration while carrying fault current. The ground transformer must not exceed temperature ratings while carrying neutral and continuous phase currents.   With the first objective above, a Ground Transformer must carry fault current for durations beyond the 2 second limitation, which is the time limitation often found with standard distribution transformers.  The time period a Ground Transformer might carry fault current can exceed 10 seconds or even longer.  The inherent design of a Ground Transformer allows this extended time period while maintaining transformer temperature and ensuring the transformer remains below the defined critical, thermal, limitations. Inherent Design Benefits of Ground Transformers The design of a Ground Transformer offers many inherent, design, benefits over standard distribution transformers as follows: The ground transformer aptly handles fault heating without insulating oil for heat transfer during the fault. The ground transformer uses steady cooling to calculate magnetizing current and HV 12R loss from the energized core only.  The ground transformer reads a zero sequence fault with a return path to the network.  This, in turn, impresses the fault current equally, and simultaneously, on all three legs. The ground transformer offers quality copper construction, which allows maximum strength to cross section ratio.  This results in the ability to successfully combat the forces generated.  The ground transformer's utilization of copper creates a higher, thermal, capability resistance. The ground transformer offers circular coil technology, which offers greater stability over comparable construction, such as rectangular coil technology. One Type of Ground Transformer - The Isolation Transformer One type of ground transformer is the isolation transformer, which is utilized for a variety of power source tasks.  One such task is allowing the passage of AC signals while simultaneously blocking DC signals.  An isolation transformer can also be used to block interference from ground loops.  Used in conjunction with electrostatic shields, isolation transformers are often found in laboratories, computer, and environments that utilize sensitive equipment. Highest Quality Ground Transformers Whatever type of ground transformer you are looking for; we carry a huge selection of the top brands.  Manufacturers like Acme, Marcus, GE, Federal Pacific, and TEMCo’s own custom line of ground transformers.  TEMCo is your one stop shop for the highest quality ground transformers available on the market today.  Let our ground transformer specialist help you select the best ground transformer for your power source needs.  Contact our team at 1-510-490-2187 or 1-800-613-2290 for the best prices on ground transformers with fast, low, shipping rates. Call Our Ground Transformer Specialists Today! Remember to bookmark us: Ground Transformer	Ground Transformer The inherent design of a ground transformer allows this type of transformer to carry fault current for up to 10 seconds or longer. We Supply A Wide Variety of High Quality Ground Transformer Models from Top Manufacturers.
		TEMCo Transformer Manufacturer Distribution: The Custom Pad Mounted Transformer Manufacturer Supplier of Choice for Electricians and Manufacturers.
		Quick Nationwide and International Shipping from Regional Warehouses
		TEMCo Transformer Manufacturer Distribution: High Quality, Efficient, Fast Turnaround of Custom Pad Mounted Transformers Manufactured to your Specs!

Call for ground transformer information.  Ground 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.

Ordering is as easy as 1, 2, 3.

2. We Accept Visa, Discover American Express, Master Card.	3. We'll ship your order to you asap.
	or
We also accept Wire Transfer, Money Orders, etc.	And by other professional trucking companies.

RFQ and Order Fax: (510) 490-1507
We appreciate feedback, send us email us at info@temcotransformer.com
please include a phone # to reach you.

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.
If you are a qualified reseller, call for a TEMCo Transformer reseller application.

---

Order Transformer • Acme Transformer Models Page 1 • Acme Transformer Models Page 2 • Hammond Transformer Models Page 1 • Hammond Transformer Models Page 2 • Hammond Transformer Models Page 3 • More Transformer Types Page 1 • More Transformer Types Page 2 • Transformer Selection Guide • Transformers • AC Transformer • Voltage Transformer • Buy Transformer • New Transformer • Output Transformer • Transformer KVA • Converter Transformer • Line Transformer • Toroidal Transformer • Transformer Wiring • 2 Phase Transformer • Transformer Circuit • Variable Transformer • Pole Transformer • Transformer Pad • VA Transformer • WYE Transformer • Potential Transformer • Transformer Protection • Variac • 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 • Custom Transformers • Dry-Type Transformers • Auto Transformers • Control Transformers • Indoor TMC Enclosed Control Transformers • Indoor TMO Open Control Transformers • Indoor TMTB Enclosed Control Transformers • Copper Transformers • Energy Star, TP1 Rated Transformers • Step-Up Transformers • Step-Down Transformers • Harmonic Cancellation • Isolation Transformers • K-Factor Rated Transformers • 3-Phase Transformers • European Voltage Transformers • European Voltage 3 Phase 60Hz Transformers • European Voltage 3 Phase 50Hz Transformers • Drive Isolation Transformers • High Voltage Transformers • Epoxy Encapsulated NEMA 4 Transformers • Weatherproof NEMA 3R Transformers • Transformer Manufacturer • About US - TEMCo Transformer Manufacturer • TEMCo Privacy Notice • Oil Filled Transformers • Voltage Regulator • Automatic Voltage Regulator • DC Power Supply • PDU • Rack PDU • Power Conditioner • Power Line Conditioner • Load Center • Switchgear • Voltage Converter • 2 Phase Transformer • Power Distribution • Industrial Transformer • Replacement Transformer • Insulation Transformer • Micron Transformers • Westinghouse Transformer • Power Supply Transformer • Instrument Transformer • Pulse Transformer • Substation Transformer • Furnace Transformer • About US - TEMCo Transformer Manufacturer • Transformer Manufacturer Home

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

Other Quality Products: Diesel Generator • Diesel Power Generators • Diesel Generator Sets • Power Generators • Onan Diesel Generators • Variable Frequency Drive • Soft Start Drives • Motor Control • PTO Generator • Mobile Light Tower • Standby Generator

Power Transformer • GPU Power • Harmonic Cancellation • Automatic Voltage Regulator • DC Power Supply • PDU • Rack PDU • Power Conditioner • Power Line Conditioner • Load Center • Switchgear • Voltage Converter • Combination Starter • Motor Starter • Disconnect Switch • Magnetic Starter • Oil Filled Transformer • Voltage Regulation • 400Hz  • 50Hz  • 60Hz • Aircraft Power Unit • Energy Storage Capacitor • Regulator • Power Supply • Surge Protector • Uninterruptible Power Supply • Power Regulator • Switching Power Supply • Regulated Power Supply • Voltage Stabilizer • Switching Regulator • Shunt Reactor • Recloser • UPS • Convertidores de Fase • Variable Frequency Drive • 3 Phase • Step Up Transformer • Control Transformer • Pad Transformer • Pole Transformer • High Voltage Transformer • Leeson Motor • Weg Motor • Baldor Motor • Toroidal Transformer • Generator Head Sets • Distribution Transformer • Baldor Generator • Pulse Transformer • Winco Generators • Dry Type Transformer • Motor Servo  • Motor Controller  • Pulse VFD  • Phase Shifting Transformer  • Variable Speed Drive  • Circuit Breaker  • PTO Generators  • Power Generator  • Electric Motor  • Onan Diesel Generator

Power Transformer  • Motor Control  • Isolation Transformer  • Step Down Transformer  • Three Phase Transformer  • Voltage Transformer  • New Voltage Transformers  • AC Transformers  • Output Transformer  • Custom Transformer  • Variac Transformer  • Variacs  • Voltage Regulator  • Circuit Breaker Panel  • Rectifier  • Electric Motor  • Power Generator  • Frequency Converter  • Motor Generator  • Ship Port Electrical Power  • Cold Ironing  • Aircraft Ground Power Unit  • GPU  • Ground Power Unit  • Line Conditioner  • Industrial Generator  • Small Generator  • Home Generator  • Transfer Switch  • Generator Transfer Switch  • Natural Gas Generator  • Inverter Generator  • Propane Generator  • Wind Generator  • 3 Phase Generator  • Phase Converter  • Portable Generators  •
Portable Generator  • Standby Generators  • Power Generators Dir  • Electric Generator  • Mobile Light Towers  • Diesel Generator Set  • Diesel Generator  • PTO Generator  • Motor Control  • VFD  • Power Converter

Sales throughout the USA & Internationally
Remember to bookmark this page! • Feel free to add a link to us!
Site content Copyright 1999-2009 TEMCo Stock & Custom Transformer Manufacturer Supplier