Solid State Electric Power Support Equipment for B-1B Hangar Maintenance
Final engineering rept. 21 Oct-20 Dec 1986
STRATEGIC AIR COMMAND OFFUTT AFB NE AIRCRAFT ENGINEERING DIV
Pagination or Media Count:
Two commercially available solid state frequency converters 90 KVA, 60 Hertz to 400 Hertz, 3 phase WYE systems were evaluated in a field test to determine if their electrical power output quality was acceptable for U.S. Air Force systems. Load bank and aircraft testing determined that the solid state frequency converters are capable of producing acceptable power. The off-the- shelf units will require some modifications to reduce the harmonic distortion and to improve the voltage regulation in order to meet current specifications MIL-M-4803D, General Requirements for Motor-Generators. Specifications for solid state frequency conversion equipment are being drafted by the item manager and will be similar to MIL-M-4803D. The frequency regulation of the solid state frequency converter was exceptionally good. In addition, the wide power factor operating range, easy access for maintenance, and anticipated improvement in the mean time between failure continue to make this technology attractive as an alternative for providing 400 Hertz facility power for aircraft use.
- Terminal Flight Facilities
- Electric Power Production and Distribution