Specialty Magnetics

At AFP Transformers, we provide unique custom transformer solutions from fractions of a volt to 34.5 kV voltage class transformer applications. Our expertise covers a diverse range of industries and includes specialty designs for niche applications. These diverse applications cover:

Motor starting reactor and Open Delta motor starting transformer designs
Scott-T split phase or phase balancing transformers
Filament and plate transformers
Rectifier and Interphase transformers
Saturable core reactors
Low Voltage and Medium Voltage Control Transformers

Our customers touch nearly every industry and include utility companies, medical facilities, data centers, and multiple original equipment manufacturers. A variety of stock designs are readily available and our engineers can develop modified units for completely custom designs.

We provide custom stocking programs for repeat orders and can use blanket orders to provide quantity pricing.

For more information about our custom transformer solutions, see the table below, or Contact Us directly.

Request a Quote

Specialty Magnetics Capabilities

Transformer Type

Autotransformers
Scott T Transformers
Grounding Transformer
High Impedance Transformers
Isolation Transformers
K Factor Transformers
LeBlanc Transformers
Low Impedance Transformers
Low Inrush Transformers
Motor Starting Transformers
Motor Starting Reactors
Neutral Grounding Transformers
ZigZag Phase-Shifting Transformers
Plate Transformers
Filament Transformers
Control Power Transformers
Pulse Transformers

6 Pulse
12 Pulse
18 Pulse
24 Pulse
Multi-Pulse

Traction Transformers
Vertical mounted Transformers

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

Inductor Sizes: Milliamps to 10,000 Amps

Configurations

Open Delta
Delta Connected
Wye Connected
Double Wye with Interphase

Construction

Standard Dry Type
Cast Coil (Epoxycast®)
Encapsulated

Core Type

Air Core
Amorphous (Metglas®) Core
Powdered Metal Core
Silicon Steel Core
Ferrite

Winding Material

Copper
Aluminum

Winding Form: Magnetic 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

Inspection

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

Voltage
Current
Watts
Vars
VA
Power Factor
Efficiency

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