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Flywell Power UK Ltd is a manufacturer of portable ground power units for aviation.
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Starter + Continuous Power, Combination Units   Download as PDF
This unique range of 28 Volt portable GPUs has been developed to provide continuous DC power for avionics work, shop maintenance, diagnostics, training or demonstrations and can also be used for aircraft starting. It has one of the best power-to-weight ratios on the market.

For ease of service and maximum redundancy, these units are fitted with independent 53 Amp advanced Switch Mode Power Supplies, the number of which depends on the model.
Fitted with two or four (depending on model) high discharge batteries giving peak current of 2400 Amps or 4800 Amps within 30 minutes of mains power being applied.
Digital Voltmeter indicates voltage of continuous output when mains input is applied, and a push switch indicates the output voltage of the batteries.
Digital Ammeter indicates output current of continuous power.
Output “ON” green LED indicate individual Power Supply output.
Protection against overload (constant current limiting, unit will shut down output after 5 second, re-power on to recover).
Protected against over voltage (set at 31 V, unit will shut down output, re-power on to recover).
Protected against over temperature (95 C detect on heat sink of power transistor, unit will shut down output, recovers automatically after temperature goes down).
Cooling by a number of independent high-power cooling fans.
Supplied with 3 meter heavy-duty DC output cable and rubber Aircraft plug, AC input cord and workshop manual.



Can be supplied with longer heavy-duty DC output cable and rubber Aircraft plug
Can be connected in parallel with other FW GPUs to increase current output or to be used for starting aircraft

Technical Specifications *  
Technical Data FW50-1000 FW50-2000 FW100-1000 FW100-2000 FW200-1000 FW200-2000
Input Voltage 90 VAC to 264 VAC 1 phase (8A) 90 VAC to 264 VAC 1 phase (16A) 220VAC to 460 VAC 3 phase (16A per phase)
Input Voltage Frequency 40Hz to 70Hz
Output Voltage 28.2 VDC
Output Current Continuous 53A 106A 212A
Output Current Peak 2400A 4800A 2400A 4800A 2400A 4800A
Efficiency 90%
Overall Dimensions in mm Not more than (L x H x W) 420 x 360 x 230 420 x 400 x 320 420 x 500 x 320
Operating Temperature -40°C to +70°C
Weight, not more than 35.5 Kg 61 Kg 40.5 Kg 66 Kg 48 Kg 73.5 Kg
Weather Resistance IP 54
EMC Standards Compliance to EN55022 (CISP 22), EN61000-3-2,-3
Safety Standards UL60950-1, TUV EN60950-1 Approved
Technical specifications are subject to change, due to new developments. We also do custom development of products as per your requirements. The actual equipment may look different from the one shown in the photograph.
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