Heating & Furnace Transformers

At AFP Transformers, we produce a diverse array of transformers specifically designed for use in industrial heating and furnace applications. This includes multi-tap transformers which are capable of accounting for multiple power requirements, saturable reactors or SCR controlled primaries for use in variable output power applications and Scott T transformers which are used to convert between phases. Low to medium voltage transformers are available in 600 V to 34.5 kV voltage classes with multiple enclosure options. All NEMA standard enclosures, including stainless steel, are available, along with a variety of closures designed for specialty applications.

High frequency transformers with operating frequencies up to 25 kHz and impedance matching output transformers are available for use in induction heating applications. We have a large inventory of established design options which fit many applications. If a standard design is not well suited to the application, our engineering and design staffs have a wealth of experience in developing custom transformers for specialty applications. A myriad of stocking and inventory options are also available upon customer request.

For additional information regarding our industrial heating and furnace transformers, see the table below, or Contact Us directly.

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Heating & Furnace Transformers Capabilities

Transformer Type

Step Down Transformers
Multi-Tap Transformers
Scott T Transformers

Features & Options

SCR Controlled Primaries
Saturable Reactor Designs
High Frequency Voltage Conversion
Impedance Matching Output

Applications

Furnaces
Heating Elements
Variable Output Power
Induction Heating Systems

Power Type

Single Phase
Two Phase
Three Phase
Multi-Phase

Voltage Class

600 V
5 kV
15 kV
34.5 kV

Power Rating: 100 VA to 2,500 kVA

Frequency: Up to 25 kHz

Construction

Standard Dry Type
Cast Coil (Epoxycast®)

Winding Material

Copper
Aluminum
Magnet Wire
Foil

Enclosure Types & Options

NEMA 1
NEMA 2
NEMA 3R
NEMA 4
NEMA 4X
NEMA 12
Drip Proof
Non-Ventilated
Totally Sealed
Stainless Steel
Indoor
Outdoor
Rain Shields
Custom

Insulation Thermal Rating: Up to 150°C Rise

Testing & Inspection

100% Product Testing
IEEE C57.12.91 Special, Standard, or Custom
Testing Parameters Stored

Voltage
Current
Watts
Vars
VA
Power Factor
Efficiency

Applied Potential (HiPot) Testing to 100 kV AC RMS
BIL capability up to 300 kV
Partial Discharge Testing

Up to 100 kV applied potential
In excess of 70 kV induced potential

Customer Specified Testing as Requested

Stocking Programs

Kanban
JIT Shipping
Min-Max
Custom

Production Volume

Prototype
Low Volume
High Volume

Lead Time

3 to 6 Weeks Typical
Expedited Turnaround in as little as 1 Week

Additional Information

Industry Focus & Applications

Switchgear Manufacturers
Motor Control Center Manufacturers
Utilities
Power Factor Correcting Equipment Manufacturers
Power Conditioning Equipment Manufacturers

PDU manufacturers
UPS manufacturers
Voltage Regulator Manufacturers
Data Center CPUs

Industrial Heating Equipment Manufacturers

Furnaces
Induction Heating Power Supplies
RF and Microwave Heating Machines

Mining Machine Manufacturers
Waste Water Treatment
OEM Machine Manufacturers

Machine Toolmakers
Packaging Machines
Semiconductor Machine Manufacturers
Web Processing Machine Manufacturers

Industry Standards

IEEE C57.12.01
General Requirements for Dry-Type Distribution & Power Transformers, Including Solid Cast
IEEE C57.12.91
Standard Test Code for Dry-Type Distribution & Power Transformers
UL 508
UL Standard for Industrial Control Equipment
UL 506
UL Standard for Specialty Transformers
UL 1561
Industry Standard for Dry Type General Purpose & Power Transformers, 600 Volt Class
UL 1562
Industry Standard for Dry Type General Purpose & Power Transformers, Medium Voltage, Up to 34.5 KV
NEMA ST 20
Standard for Dry Type Transformers for General Applications
NEMA TR1
Test Code for Transformers, Regulators & Reactors
NEMA ICS 2
Industrial Standard for Controllers, Contactors, Overload Relays & Related Equipment. (Motor Starting Autotransformers & Reactors)

International Standards
IEC 60076
Power Transformer & Reactors – Medium Voltage
IEC 61558
Power Transformers & Reactors – 600 Volt Class
CE Certification to IEC Standards

Marine Standards
ABS
American Bureau of Ships
DNV
Det Norske Veritas