Mitigate Harmonics. Protect Your Systems.
Phase shifting transformers from Magnetics Design are expertly engineered to cancel out disruptive harmonic currents generated by non-linear loads like Variable Frequency Drives (VFDs). Secure clean, reliable power and extend the life of your equipment.
/The Magnetics Design Advantage/
Clean power for high-demand drives.
Non-linear loads distort current, causing excessive heating, inefficiencies, and equipment degradation. Our multi-pulse phase shifting transformers cancel out these specific harmonic signatures.
01
Harmonic Cancellation
Targeted phase shifts (e.g., 12, 18, or 24-pulse) effectively trap and cancel triplen and high-order harmonics.
02
IEEE 519 Compliance
Engineered to help industrial facilities meet strict IEEE 519 standards for voltage and current distortion limits.
03
Drive Isolation
Provides galvanic isolation to protect delicate VFD electronics from harsh line disturbances and transients.
04
Thermal Reliability
Designed to handle the extra heat generated by harmonic currents without derating or accelerated aging.
Power Transformer Specifications & Capabilities
Magnetics Design phase shift transformers are rigorously constructed and tested to meet or exceed IEEE C57.110 (Recommended Practice for Establishing Liquid-Filled and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Alternating Currents) and relevant IEC standards.
Whether you require a standard 12-pulse setup for an industrial motor drive or a highly complex custom phase-shifting solution to integrate with parallel utility feeds, our engineering team in Illinois has the capability to deliver a compliant, high-performance unit.
Standards & Specifications
Specify Your Phase Shift Requirements.
Provide your system kVA, primary/secondary voltages, and the required pulse configuration. Our technical sales engineers in Illinois will review your specs and return a comprehensive quote—often on the same day.
What Our Clients Say
by Magnetics Design substations.
Advanced transformer solutions designed to improve power quality, reduce harmonics, and maximize system performance.
We were struggling with severe harmonic distortion on our main drive lineup. Magnetics Design engineered a 24-pulse phase shifting unit that dropped our THD well below IEEE 519 limits.
Brian John
My Client
Magnetics Design turned around a quote for a custom 18-pulse transformer the same day. The build quality was exceptional, and it arrived right on schedule for our shutdown window.
Felix Chou
My Client
The VFD isolation properties on these units are bulletproof. We source all our specialty phase shift transformers from the Magnetics Design team because they get the specs right the first time.
Anna Choux
My Client
Questions Engineers Ask
What does a phase shift transformer do for my VFD system?
Variable Frequency Drives (VFDs) convert AC to DC and back to AC, drawing current in non-linear pulses. This creates harmonic distortion on the power line. A phase shifting transformer splits the power into multiple secondary windings, each slightly out of phase with the others (e.g., 12-pulse, 18-pulse). When the harmonic currents from these windings meet at the primary, they mathematically cancel each other out, keeping your line power clean.
What is the difference between a 12-pulse, 18-pulse, and 24-pulse configuration?
The “pulse” number refers to the number of rectifier diodes the transformer is designed to feed. Higher pulse numbers provide greater degrees of phase shifting, which cancels higher orders of harmonics. A 12-pulse system significantly reduces 5th and 7th harmonics. An 18-pulse system additionally cancels 11th and 13th harmonics, offering cleaner power that typically ensures full compliance with IEEE 519 standards.
What are your standard lead times?
Lead times vary depending on whether the unit can be supplied from our stock or if it requires custom engineering and manufacturing. However, Magnetics Design prides itself on industry-leading turnaround times. Request a quote with your specific parameters, and we will provide an accurate, reliable delivery window—often the same day.
Do you offer Made-in-USA options?
Yes. Magnetics Design is an Illinois-based manufacturer, and we can specifically engineer and build your phase shift transformer to meet strictly domestic sourcing requirements, such as the Buy American Act (BAA). Just specify this requirement to your sales engineer.
What kind of warranty is included?
Magnetics Design backs our custom phase shift transformers with a comprehensive 3-year warranty against defects in materials and workmanship. We test every unit rigorously before it leaves our facility to ensure decades of reliable service in the field.