Ground Power Unit
Your Professional Ground Power Unit Supplier
Noyark is a world leader in power supply systems and has been developing AC and DC power supplies based on the core technology of power conversion. We provide advanced, reliable and cost effective power products.
Why choose us
Long Warranty
Unlike most competitors offering only 1-year warranty, we provide 2-year standard coverage.
Sales Market
Our products are exported to Russia, India, Southeast Asia, and Africa, and have received high praise from local customers.
OEM Service
As your global production partner, we accept small orders and provide customized Logo and packaging services, supporting printing or laser engraving to make your products more personalized.
Production Guarantee
We have several automated production lines to ensure efficient production and meet the demand for large quantities. All products are quality certified to ensure qualified and reliable.
Ground Power Unit
Ground Power Unit, or GPU for short, is the name given to power supply equipment that provides clean power to aircraft while they are on the ground. A GPU, much unlike your average household power supply, is unique in that it provides a very specific "ripple free" or "clean" voltage, this ensures sensitive avionics and control systems within the aircraft are protected.
Ground Power Units (GPUs) supply power to a parked aircraft on ground through 115 / 200V 400Hz AC and / or 28V DC Voltages. The Ground Power Unit (GPU) can be either a fixed or mobile unit.
Specifications
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Technology |
Solid-State PWM IGBT Design (Rectifier: SCR, Inverter: IGBT) |
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Rated Power |
30-60KVA |
Display |
Touchable 7'' LCD Screen |
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Input Voltage |
Client to specify |
Input Frequency |
50/60Hz |
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Phase Number |
1 or 3 |
Output Frequency |
400Hz |
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Output Voltage |
115/200VAC |
Output Waveform |
Sine Wave |
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Phase Number |
3 |
Output THD |
≤2% (Linear Load) |
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Protections |
Circuit Breaker, Fuse Blown, IGBT Fault, Over / Under Voltage, Over Current, Over Load, Overheat, Short Circuit |
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Overload |
100% Load: Normal Operation 120% Load: 10s 150% Load: 1s 200% Load: Cut Off Output Immediately |
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Response Time |
2ms |
Altitude |
≤1000m |
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Voltage Accuracy |
±1% |
Relative Humidity |
≤95% (non-condensing) |
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Frequency Accuracy |
±0.01% |
Ambient Temperature |
-15℃ to +45℃ |
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Cooling |
Forced Air |
Protection Degree |
IP54 |
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Efficiency |
≥92% |
Installation |
Towed, mobile and outdoor |
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Duty Cycle |
Continuous |
Standard |
IEC 61000-6-2, IEC 61000-6-4, IEC 62477-1 |
Double Conversion
AC-DC-AC true online double conversion technology.
PWM / IGBT Design
Pulse-width modulation, 100% solid state circuit, static without moving parts.
Galvanic Isolation
Output with built-in isolation transformer to provide galvanic isolation.
Full Protection
Input & Output Circuit Breaker, Under Voltage, Over Voltage, Overload, Overheat, Short Circuit, etc.
Pure Sine Wave
High-frequency IGBT technology and isolation transformer guarantee a perfect sine wave output.
Multiple Functions
Not only can convert and stabilize voltage & frequency, but also can change the phase number.
Components of a Ground Power Unit
Power Generator
The core of every ground power unit is the power generating system. This device generates the electric power the aircraft needs, depending on GPU requirements and legal guidelines. Options may include sources such as diesel or electricity.
Distribution System
Once electricity has been produced, it must now be distributed throughout the ground power unit. The distribution system ensures not only that the electric power flows throughout the unit but also that the electrical energy reaches all necessary components ready to go on board.
Control Panel and Monitoring Devices
The control panel and monitoring devices are part of every ground power unit. These interfaces allow pilots and operators to start up, stop, and monitor the unit’s performance.
How Do Ground Power Units Work
Ground power units convert mechanical energy from a combustion engine or electric motor into electrical power, which is then supplied to the aircraft. This power enables the aircraft to operate essential systems like avionics, lighting, and environmental control without needing to start the engine or use the APU. The GPU is designed to provide the correct voltage and current required by the aircraft’s systems, ensuring a reliable and stable power supply during ground operations such as pre-flight checks, maintenance, or boarding.
The GPU is connected to the aircraft via a power cable with a compatible connector, typically positioned near the aircraft's power inlet, which can be found on the fuselage or under the wing. Ground crews must ensure the cable is securely attached and properly coiled to avoid damage or obstruction during aircraft movements. The connector interface plays a vital role in maintaining system integrity, ensuring that the GPU’s power output matches the aircraft's specific requirements, enabling smooth and efficient operation of the electrical systems.
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