AERO Specialties PV90 90kVA 400Hz Mobile Electrical Aircraft Ground Power Unit

System operation

• Input Isolator Switch
  • Fitted with terminal shrouds and mechanical door interlock, this ensures maximum user safety as the door cannot be opened until the switch is in the off position. Once this switch is in the on position, the system is in standby ready for use, no complicated start sequence required!
• Rectifier
  • The rectifier supplies low ripple DC to the inverter section using rugged 12-pulse technology, the rectifier offers near unity input power factor (> 0.97) with low harmonic content (< 8%).
  • Near Unity Power Factor = Lower input current
  • Low Harmonic Content = Less strain on the electrical infrastructure
• Inverter
  • The inverter converts the DC supplied from the rectifier into high quality 400Hz AC using the latest PWM technology, the PV90-3 inverter is highly efficient whilst providing a clean output (< 3% THD) suitable for all aircraft.
• Output Transformer
  • Using high grade steel ensures a compact, lightweight and efficient transformer which acts as a filter and also provides the required galvanic isolation.
• Output Contactor
  • Complete with interlock, the output contactor ensures power is isolated from the plug until the aircraft is ready to accept power.

Standard features

• High Overload Capability
  • Modern aircraft demand high overload capability, the PV90-3 offers compatibility with all modern aircraft, in particular: 777/A380/787.
• Auto Connect
  • After ground support press the on button, the system will run for up to 5 minutes, if during this time the pilot requests ground power, power is automatically connected without any further intervention from ground support.
• Automatic Line-drop Compensation
  • The automatic line-drop compensation ensures each phase is individually adjusted to achieve the correct voltage at the aircraft plug. The compensation can be adjusted easily via the user interface panel (when in service mode).
• Remote Control/Monitoring Connections
  • Remote on/off/monitoring allows the system to be controlled and monitored from a distance either from the aircraft plug or via remote switches at the end of a cable carrier system.
• Filter maintenance
  • Removable polyurethane foam filter cartridge can be replaced whilst GPU running, minimising downtime during routine maintenance.

Modular design

• Pluggable Power Module
  • One of the most outstanding features of the PV90-3 is the pluggable Power Module. In unlikely event of system failure, the “HEART” of the system can be easily replaced by first line maintenance staff in a matter of minutes.
  • The Power Module contains all power devices and control PCB’s which means there is a one-fix solution for almost any fault. So no matter where you are in the world, repairing the PV-90-3 is possible without the need for site attendance by factory trained engineers.
  • AERO Specialties guarantees turn-around times for warranty repairs of PV90-3 Power Modules and also operate a service exchange system for when your PV90-3’s warranty expires. AERO Specialties recommend one spare Power Module for every 5 systems in operation.

Enclosure

• Double Door Seals
• Dual seals on all doors for improved ingress protection.
• Rust Treatment
• Stainless steel enclosure as standard. For heavy duty trailer mount option the trailer is made from galvanised steel.
• Paint Finish
• Powder Coat paint finish suitable for outdoor use. Standard colour is
• RAL7035, other colours available.

Control panel

• LCD Screen
  • A large blue-backlit LCD screen provides detailed information of the supply and output parameters. Intelligent system status updates are also displayed providing the user with live system and interlock information.
• Status Indication
  • High Intensity LED status indicators provide instant status overview: GREEN: System Healthy AMBER: System in Alarm RED: System Fault
• Menu Function
  • Simple menu navigation allows easy access to additional features and settings.
• Easy Robust Operation
  • Large rubber ON/OFF buttons offer easy robust control of the system in all weather conditions.
• Data-logger
  • Real time data logging of system operations as well as alarm data. Each entry is date stamped for accurate diagnosis. Output power consumption is also logged at 5 minute intervals.

Protections

• The PV90-3 is packed with electronic protections to ensure that the system protects the user/aircraft and system during abnormal conditions.
  • No Break Power Transfer (NBPT)
  • Output Neutral Monitoring
  • Output Overload
  • Output Short Circuit
  • Output Under/Overvoltage
  • Output Current Limit
  • Over Temperature
  • Aircraft Interlock
  • Input Supply Monitor (voltage & frequency)
  • Input Phase Rotation