Frequency Converters
For over 30 years Piller has supplied ground power systems for both military and civil applications. Through continual research and development of our products we guarantee a high level of flexibility in meeting clients' demands, however complex. Piller specialists ensure operating personnel of all Piller products are fully trained.
50Hz / 60Hz Frequency Converters
Piller has supplied 50/60Hz ground power systems for both military and civil applications. Through continual research and development a high level of flexibility is guaranteed in meeting clients' requirements. Products include Piller Motor Generator Sets with full digital control and the Piller UNIBLOCK UBSF.

Static
40 kVA to 200 kVA

Rotary
12kVA to 1500kVA
400 Hz Frequency Converters
In the field of 400Hz frequency converters, Piller’s ground power equipment such as APOJET AJS, APOJET AJR and APOJET AJT can be found in operation at major airports and military air bases throughout the world. Piller provides tailor-made solutions for each project. Through continuous research and development a high level of flexibility is guaranteed in meeting clients’ requirements. All Piller ground power equipment is designed and built to the highest quality

Static
5kVA to 200kVA

Rotary
20kVA to 380kVA
Shore-to-Ship Systems
Piller offers shore-to-ship solutions including voltage transformers and frequency converters up to 1500kVA to match the grid power, voltage and frequency to the ship’s onboard power systems. Solutions for 50/60 Hz supply are available with static and rotary technology in low voltage and medium voltage.
Naval Power Systems
Piller has been a supplier partner in the field of naval technology since 1965. Originally providing only shore connection stations for supplying power to naval vessels, new developments followed, including special fan systems for submarines, rotary and static frequency converters, on-board UPS systems, special purpose DC motors, brushless charging and ship's generators and alternators.
APOJET 28V DC GPU
The 28 V DC solid state ground power unit is designed to generate 28VDC power for aircraft equipment. The system is available either as stationary or mobile version. Using the latest state-of-the-art technology and newest trends in the power electronics field and digital control, the system offers the best solution for aircraft ground power supply systems.
Gatebox AJT 90-180kVA
The APOJET AJT step down transformer (Gatebox) is designed to step down the high 400Hz transmission voltage supplied by a centralised Ground Power System.
The system can be installed either on the apron or beside a boarding bridge. It is also available as a two-cabinet version. Using the latest state-of-the-art technology and newest trends in the power electronics field and digital control, the APOJET AJT offers the best solution for aircraft ground power supply systems.
APOCOIL Cable Storage System
The APOCOIL cable reeler system stores 400Hz power cables at boarding ridges and aprons by using a motor driven coiling drum. The system is mounted either under the front end of the boarding bridge, on top of a frequency converter or on a support stand on the apron. The APOCOIL is operated by push buttons at the aircraft plug and/or via a remote control panel. Optionally it is equipped with 400Hz power cable and aircraft plug in accordance with customer specification.