Ground Power Unit

  • Description
Product Detail

Why 400Hz?

As we know, the aircraft is using 400 Hz power supply and it is because the higher hertz of the power supply system, the lesser of copper and steel materials of the generator and transformer being used, which lead to light weight and low cost. The disadvantages are the electrical equipment and wiring inductance increase, capacitances decrease, losses increase, reducing the power transmission efficiency. Conversely, lower hertz will increase the use of materials, which lead to higher weight and costs. So, 50 Hz, 60 Hz is an appropriate value for mains power supply, 400 Hz for aircraft, military, vessels, navy ships etc.

For faster response,please send your requirement to email:acpower@acsoonpower.com

Acsoon® AF400W series is one of the most popular static frequency converters. AF400W is designed to change the power at 50Hz or 60Hz to aircraft quality power at 400Hz.

It integrates with IGBT(Insulated Gate Bipolar Transistor) made by Mitsubishi, Siemens, and Infineon, and combines microprocessor made by ACSOON to accomplish quicker response and higher reliability.

So Acsoon ® AF400W as a power source to develop aircraft quality 400hz Power. It has strong adaptability, high stability and stable output waveform and  the volume is relatively small. There are mostly used in aircraft production manufacturing, military/civil hangar, maintenance plant, aerospace equipment, military airport tarmac and wells, etc.

Main Features

? Automatically voltage compensation system,ideal voltage at aircraft connector

? Self diagnose system which would show error code/faulty explanation on the VFD screen

? Memory stores 10 events.

? Galvanically isolated, low harmonic distortion

? Thoroughly proven advanced SPWM and IGBT technology

? Pure sine wave output

? Eco-friendly, high efficiency, low noise

? 28VDC military interlock

For faster response,please send your requirement to email:acpower@acsoonpower.com


static frequency converter.png                GPU400?????? ??.png

The Acsoon® AF400W series ground power unit model is shown below:

400Hz GPU 90kVA

Specification

? Capacity

? 30/45/60/90/120/150/180KVA


?  Input

? Voltage: 3 x127V/220V+/-15% 

                  3 x220V/380V+/-15% 

                  3 x240V/415V+/-15% 

    Or as per your specific requirement.

    (select one individual voltage)

? Frequency: 40-70Hz

? Power factor: 

    =0.8 (Standard type)

    =0.9 (12 pulse type, optional item)

? Inrush current: None, soft start


?  Output

? Voltage: 3x115/200V (L-N/L-L)

                  3x120/208V (L-N/L-L)

    Or select one individual voltage

? Frequency: 400Hz (320Hz~480Hz adjustable)

? Voltage regulation: +/-1% FS

? Frequency regulation: +/-0.1%

? Crest: 1.414+/-0.1

? Distortion: THD<3% @ linear load

? Voltage difference between each phase<3V

? Line drop compensation:1-10V

? Voltage recovery: ?U <10% and rec. time <50 ms

    at 100% load change

? Phase angle:

    120°+/-2° (33% unbalance Load)

    120°+/-4° (100% unbalance Load)


? Overload

    125% for 10 min

    150% for 1 min

    200% for 10 sec 

    (Optional 300% & 400%)


? Protection

? Over voltage, under voltage, phase loss

? Over current, over load, short circuit

? Over temperature, wrong phase sequence

? Self diagnose and alarm system

? Voltage difference between each phase<2V

? VFD display:

Voltage, Current, Frequency, Error code 

Start/Stop,On/off each output

Line drop compensation status

Emergency stop 

? Available options

? 28 VDC, 300-3000 A output (45~90kVA only)

? Additional output contactor

? Remote control box

? Terminal extension for 2 PCS of 7 core cable

? Parallel system

? Door interlock

? 28V military interlock 

? Working condition

? Ambient temperature: -40 to 55?

? Humidity:10~95% non condensing

? Noise:< 65dB within 1 meter

? IP22 / IP55

? Reliability

? Mean Time Between Failure (MTBF) 50,000H

? Mean Time To Restoration (MTTR) < 30 min

? Electromagnetic compatibility: Meeting relevant 

requirement of IEC61000-6-2 and EC61000-6-4

? Standby power consumption:<65W

? No-load power consumption:<2.5KW

? Efficiency:

       =85% at full load for standard type

       =95% at full load for 12-pulse type (Optional)

? Standards

? DFS400

? MH/T6018

? ISO 6858

? MIL-STD-704

? EN62040-1-1

? GJB572 

? EN61000

? GJB 181



Typical Models and Information

Model

Capacity

Phase

Max. Weight

Dimensions for trailer type                     (net size in mm) 

   without trailer


Type*

In

Out

L

W

H

AF400W-330030

30KVA

3

3

310KG

1000

900

600

V/T

AF400W-330045

45KVA

3

3

350KG

1000

900

600

V/T

AF400W-330060

60KVA

3

3

480KG

1000

900

600

V/T

AF400W-330090

90KVA

3

3

550KG

1600

1100

700

V/T/B

AF400W-330120

120KVA

3

3 

850KG

1600

1100

700

V/T/B

AF400W-330180

180KVA

3

3

1150KG

1600

1100

700

V/T/B

V stands for Vertical type with fixed mounted GPU

T stands for Trailer mounted GPU

B stands for Bridge mounted GPU

For more models with different capacity, please contact us:acpower@acsoonpower.com.

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Xi'an Acsoon Power Co.,Ltd.

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- Special requests, if any

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