SSC 90 Series Solid State converters changes the industrial frequency 380V

50Hz into 115V/200VAC 400Hz for aircraft use. These units are available from 15KVA to 180KVA to customers’ different requirements. The flexible design allows the GPU to be setup for either bridge, fixed or trailer mounted. The advanced SV-PWM technology, micro-processor based intelligent control system gives low distortion and good dynamic characteristics.

Norms and standards

• DFS400 Specification for 400Hz aircraft power
• ISO6858 Aircraft ground support electric supplies
• MIL-STD-704 Aircraft electric power characteristics
• SAE ARP 5015 Ground equipment 400Hz ground power
• BS 2G 219 General requirements for ground support electric supplies for aircraft
• EN62040-1-1 General & safety requirement
• EN61558-2-6 General & safety requirement
• EN61000-6-4 Electromagnetic compatibility

Generic emission standard

• MH/T6018-1999 Ground static power supply
• Q/WGT018-2006 WG series ground static and DC static power supply

Features

• Equipped with international class components
• Very low distortion and pollution to the mains power.
• Independent voltage regulation of three phases give larger overload capacity
• Automatic line drop compensation Advanced self-diagnostics
• Complete monitoring, recording and protection of internal and external fault conditions
• Parameters in running conditions, operations records, fault conditions and black-box can be viewed and recalled through user friendly display interface
• Ease of operation and maintenance Protections
• Protection class: IP54
• No break power transfer
• Over/ under Voltage at in/output
• Over/Under Frequency at in/output
• Internal high temperature
• Internal voltage error
• Short circuit at output etc.

Electrical Specifications

Input:

• Voltage range: 3X400V ±15%
• Frequency: 50/60 Hz±5%
• Rectification: 12-pulse
• Line Current Distortion: <10%(distortion free mains voltage) at 100% load
• Power Factor: >0.96 at 100% load
• Inrush Current: None, soft start
• Power interruption: 20 ms

Output:

• Power: 180 KVA, cosφ=0.8
• Voltage: 3x115/200V
• Frequency: 400Hz ±0.1%
• Power Factor: 0.7 Lagging to 0.95Leading
• Voltage Regulation: <0.5% for balanced Load up to 30% unbalanced load
• Voltage Transient Recovery: δU<8%, and time<10ms @ 100% load change
• Crest Factor: 1.414 ±3%
• Voltage Modulation: <1.0%
• Phase Angle Symmetry: 120°±1° for balanced Load,
• Phase Angle Symmetry: 120°±2° for 30% unbalanced load
• Total Harmonic Content: <2% at linear load

Efficiency

• Overall efficiency: ＞0.93 at 100% load; ＞0.92 at 50% load,PF:0.8
• Stand By Losses :＜50 W

Overload ratings

• 125% 600 seconds
• 150% 60 seconds
• 200% 10 seconds

Environmental

• Ambient temperature: -40°C to +55°C
• Relative humidity 10-100%
• Noise level <65 dB(A)@1m

Miscellaneous

• MTBF( proven) :25000 hours
• MTTR: Max. 20minutes

Available standard options:

• Input adaptation
• 28VDC 600A output
• Additional base module
• Additional output contactor
• Terminal extension for 2 pcs of 7 core cable

Weight and dimensions

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Technical information for download