Motor Control Transformers & Magnetics

The motor control transformers and magnetics we manufacture at AFP Transformers are designed to serve the specific needs of the motor drive and motor control center industries. These products include a mix of standard and custom offerings such as motor starting autotransformers, 3-phase line reactors, and pulse transformers. Through our extensive experience in the transformer and power equipment industry, we have developed many innovative designs that fit a variety of motor applications. Additionally, our engineers are very adept at customizing designs for specialty applications. Transformers are available in 600 V to 34.5 kV voltage classes with copper or aluminum windings. All standard UL rated insulation systems up to 220°C and up to 150°C temperature ranges are available.

All products we produce are thoroughly tested according to national and international industry standards including IEEE, UL, IEC, and NEMA specifications. We operate dedicated testing equipment that records and stores current, voltage, power factor, and transformer efficiency results under specified operating conditions. In addition, we can perform specialized tests to customer specifications.

For additional information about our motor products, see the table below, or Contact Us directly.

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Motor Control Transformers & Magnetics Capabilities

Transformer Type & Standard Products

Motor Starting Autotransformers

3-Phase 3-Coil
3-Phase 2-Coil

3-Phase Motor Starting Reactors
3-Phase Line Reactors
3-Phase Drive Isolation Transformers (DITs)
Multi-Pulse Transformers

12-Pulse
18-Pulse
24-pulse

Voltage Class

600 V
5 kV
15 kV
34.5 kV

Winding Material

Copper
Aluminum

Enclosure Types & Options

NEMA 1
NEMA 3R
NEMA 4
NEMA 12

Insulation Thermal Rating: Up to 150°C Rise

UL Insulation Systems: All standards up to 220 °C

Frequency

50 Hz
60 Hz

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