Product Highlight EUROPEAN ROTORS 2023

Frequency Convertors and Power Supplies

Drallim supplies a comprehensive lineup of Static Frequency Converters spanning from 1kVA to 400kVA units, with a focus on Civil and Military applications, Drallim's 28V DC Starters and SFC’s have the range covered, ensuring seamless power supply for aerospace applications worldwide.

Aviation Static Frequency Converter 1kVa – 400kVa

At Drallim Industries we offer the finest quality in Aviation Static Frequency Converters, our range of SFC’s converts the source power with a specific input voltage and frequency into a different output voltage and frequency depending on the client's requirements. These Solid-State Frequency Converters have no moving parts, except for the fans to cool down the system.



  • EN61000-6-4 - Electromagnetic compatibility - Generic emission standard
  • EN61000-6-2 - Generic immunity standard



  • IEC 60529 - Degrees of protection provided by enclosures (IP Code)
  • IEC 62477-1 - Safety requirements for power electronic converter systems and equipment



  • Dry heat test (steady state) IEC 60068-2-2 subclause 5.3
  • Damp heat test IEC 60068-2-78 subclause 6
  • Vibration test IEC 60068-2-6 subclause 6
  • Salt mist test IEC 60068-2-52 subclause 6
  • Dust and sand test Lc1 of IEC 60068-2-68


28VDC GPU - Helicopter

Our policy has always been, to offer the best designed products that are environmentally friendly, simple to use, easy to maintain and exceptionally well manufactured thus meeting our clients’ requirements as well as complying with all standards and legislation.

Drallim Industries offer 28VDC solid-state Ground Power Supplies that range from 300 A continuous – 1200 A Peak load to 600 A continuous – 2400 A Peak load. We ensure high quality, efficient and secure electrical power supplies.


  • AVIATION       
    • ISO 6858 Aircraft ground support electric supplies.
  • MILITARY       
    • MIL-STD-704 Aircraft electric power characteristics.
  • EMC                
    • EN 61000-6-4 EMC - Generic emission standard.
    • EN 61000-6-2 EMC - Generic immunity standard.
  • SAFETY      
    • IEC 62477-1 Safety requirements for power electronic converter systems and equipment.
    • IEC 60529 Degrees of protection provided by enclosures (IP).


Static Frequency Converters (SFC) Explained

Experience Reliable Frequency Conversion with Our State-of-the-Art Static Frequency Converter

Our Static Frequency Converter (SFC) harnesses cutting-edge semiconductor technology to seamlessly transform input frequencies, such as 50 Hertz, into a desired single output frequency, whether it's 60 Hertz or 400 Hertz. Designed for versatility, our SFC finds applications across various fields, particularly in powering systems originally tailored for different power line frequencies, such as the specialised 400 Hertz aircraft equipment. It’s also proved invaluable for adapting equipment from different countries or effortlessly down converting a DC transmission line.

What sets our Static Frequency Converter apart is its static nature, signifying a conversion process free from moving parts, except for essential cooling fans. This ensures reliability and durability, making it a dependable choice for your frequency conversion needs.

Why Choose Our Static Frequency Converter?


Precision in Frequency Transformation:

Our SFC guarantees precise frequency conversion, ensuring your equipment operates seamlessly at the desired frequency.


Wide Range of Applications:

From aircraft equipment operating at 400 Hertz to systems designed for different international power standards, our SFC adapts to diverse applications effortlessly.


Static & Reliable:

With no moving parts except for cooling fans, our SFC offers reliability and durability, minimising maintenance requirements and ensuring consistent performance.


Expert Engineering:

Crafted using state-of-the-art semiconductor technology, our Static Frequency Converter is engineered to meet the highest industry standards, promising exceptional performance, and longevity.


Efficient Cooling System:

The integrated cooling fans efficiently dissipate heat, ensuring optimal performance even under demanding conditions, Discover the convenience of seamless frequency conversion without the hassle of moving parts. Invest in our Static Frequency Converter today and experience uninterrupted power supply tailored to your specific frequency requirements.