Frequency Converters

50/60hz Solid State Frequency Converter

• From 5kVA up to 500kVA
• Paralleling capability without additional synchronisation or load sharing devises
• Small foot print and compact design
• High efficiency
• High reliability
• Microprocessor control and regulation

Many industrial applications as well as shore to ship and naval power systems require a power supply with a frequency of 60Hz even in countries using 50Hz in general. The Piller Solid State Frequency Converters are available for the efficient conversion of any input frequency or voltage to the power supply needed for the consumer.

Motor Generator Set 50/60Hz from 125kVA up to 2300kVA

The main purpose of the Motor Generator is to convert the 50Hz power from the mains to 60Hz power used for load supply. The experience that Piller has gained in the construction of several thousand power supply systems was utilised during development. The MG-Set consists of a converter and a switchboard.

Two different versions are available.

Version one is the so called “free standing version”. In this case the converter and the switchboard are separated.

Version two is the “compact version”. In this instance the converter and the switchboard are built into a compact cabinet.

The Motor Generator Sets are available in 50/60Hz, 60/50Hz and from 125kVA up to 2300kVA

Features:

• Monobloc converter
• High overload capability
• Load dependent parallel operation
• Special earth leakage protection
• Stable operating performance due to microprocessor control
• Low output distortion factor
• No mains disturbance
• Interface for remote control and centralised control / indication, PC or modem connection
• Up to 12% automatic line drop compensation

5kVA to 200kVA Solid State Frequency Converter

APOJET AJS

The Solid State APOJET AJS static frequency converters designed to generate 400Hz power in workshops for aircraft equipment service or in hangars. 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 without any harmful harmonic distortion back into the mains.

Features

• Regulated rectifier with IGBT´s (THD at input current < 5%)
• Fully-controlled inverter with IGBT´s
• Pulse-width modulation
• Special earth leakage protection
• Stable operating performance due to microprocessor control
• Low output distortion factor
• Constant output voltage even with non-linear loads
• High degree of user-friendliness
• Interface for remote control and centralised control/indication, PC or modem connection
• Up to 12% automatic line drop compensation

20 to 150kVA Rotary Frequency Converter

APOJET AJR

The Rotary APOJET AJR rotary frequency converter is designed to generate 400 Hz power for aircraft as a decentralised ground power system mounted on the apron or near by the rotunda. Using the latest state-of-the-art technology for the system control and several decades of experience in manufacturing of rotary converters, the APOJET AJR offers the best reliability for aircraft ground power supply systems with high overload capability and with absolutely no mains disturbance.

Features

• Monobloc converter (two bearings only)
• High overload capability
• Noise reducing compact design (one cabinet containing converter and switchgear)
• Special earth leakage protection
• Stable operating performance due to microprocessor control
• Low output distortion factor
• No mains disturbance
• High degree of user-friendliness due to intelligible control panel interface for remote control and centralised control / indication, PC or modem connection
• Up to 12% automatic line drop compensation

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.

Features

• Electronically regulated output voltage
• Microprocessor controlled
• Automatic voltage drop compensation
• High degree of user-friendliness
• Interface for remote control and centralised control / indication
• Special earth leakage protection

Features

• Aluminium housing with integrated termination box
• Aluminium coiling drum with spiral channel for single jacket cable
• Limit switches
• Cable guide at inlet
• Gear motor with brake
• Power transmission by wear & tearless slip rings
• Internal control device
• Soft start /stop device

The APOJET 28VDC solid state ground power unit with rating of 400A and 600A are designed to generate 28VDC power for helicopters and smaller aircrafts. 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.

Features

• Compact dimensions and a robust design
• Output voltage regulation and current limiting
• Peak current up to 2000A
• Galvanic isolation between in and output
• Output filter
• Interface for remote control and centralised monitoring via LAN or fieldbus
• Up to 12% automatic line drop compensation
• Optional mains and output cable to customers’ specifications
• Optional 28VDC aircraft plug

The Piller Shore Power converter meets the requirements for marine application and is foreseen to supply a ship. 
Piller offers shore-to-ship solutions including 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 or 60/50Hz supply are available with static and rotary technology in low voltage and medium voltage.

Features

• Stable Clean output power even with high marina voltage transients input
• 100% current balance in input phases regardless of output load unbalance
• High overload capability (to handle high inrush currents)
• Parallel operation up to 8 systems
• Maximum reliability (MTBF 1.000.000 hours)