Macro Magnetics


At Macro Magnetics, we know what it takes to design and build a dependable transformer with all the flexibility and performance that your Microwave and RF applications require. Macro Magnetics has successfully designed and manufactured transformers for use with microwave and radio frequency applications for over 25 years.

Our transformers are engineered and built to meet the most stringent impedance specifications to effectively protect your system from reflected power. The insulation system is conservatively designed and each transformer is tested per the industry standard (IEEE C57.124-1991) to ensure partial discharge (Corona) is below acceptable level. A multi-tap configurations allows for maximum flexibility in the installation and operation offering a variety of voltages found in industrial facilities.

At Macro Magnetics we offer custom design capabilities to accommodate even the most challenging electrical and space considerations.

Our industry knowledge and experience along with our state of the art manufacturing processes allow us to produce a quality product with the reliability, flexibility and performance that you and your customers can rely on.


  • Up to 500kVA
  • Primary voltage 460V
  • Up to 7 primary taps +/- (3) 2.5%
  • Secondary voltage 15kVAC (20kVDC when rectified)
  • 60 Hz frequency
  • Copper windings
  • 200°C insulation system (130°C rise)
  • Corona testing to industry standard IEEE C57.124-1991
  • Delta-Wye for 6 pulse applications
  • Vacuum impregnated
  • Single phase and three phase inputs
  • 8-10% Impedance
  • UL listed insulation
  • Manufactured to meet US & International UL, CE, IEC, CSA and
  • ANSI standards


  • 80°C & 115°C rise
  • 50 Hz frequency
  • Aluminum primary
  • Custom impedance
  • Alternative voltages
  • Electrostatic shields
  • Enclosures
  • Terminal covers
  • Removable lifting lugs
  • Delta/extended delta for 12 Pulse
  • Thermal switches
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