Static Frequency Converter[115VAC/400Hz]
Frequency converter from 30KVA to 16MVA for shipyards,ports,docks,navy,oil companies,testings,ect.
Shipyards,port,docks,Navy,Airport,Oil companies,aviation, Lab, Factories, Telecommunication, Medical, IT, Motor Manufacturer, Scientific Research, EMI/EMC/safety test, QA/QC safety test, Electric machinery test,Superior power for laboratory,switching power test, AC fan test,transformer test, compressor test,motor test,air conditioner test,copier equipment test,computer/scanner test,SCR test, electrical appliances, electronic ballast test,400HZ converters for military diagnostic system,airport grounding stations, avionics,instruments,shipards,shiprepair,navy,shipbuilding,port,dock,oil company,ect.
50Hz to 60Hz or 400HZ variable-frequency power is a power equipment with structure of AC-DC-AC, adopted latest SPWM and IGBT inverter technology, which changes the electrical supply into the required voltage and frequency through power converting circuit. It is specially used for aviation and military electric equipment, such as airplane and its carried equipments, radar, navigation, and so on. The adjustment of voltage and frequency range is ±20%, and widely used for laboratory and product line as debugging power supply.
●Adopting AC parallel redundant technology makes two or more inverted power supply output in parallel mode and enhances system reliability. when one equipment is faulty, it will not affect the normal power supply of the others. Advanced flow equalization technology makes each power supply share the same loading, to extend the power supply capacity and power lifespan.
●Adopting three-phase independently adjustable technology, which can takes 100％unbalance load
●Adopting double frequency inverter technology, which works in the lower frequency, greatly reduce heating power and improve reliability. At the same time, the filter parameter and volume is decreased greatly, enhance peed of response, output stability and precision.
● With SCADA communication functions, can be remotely monitored and controlled by central controller systems on the ship.
380/400VAC±10%/10KV±10%,3phases,can be customized special voltage input according to customersrequirements
6pluses or 12pluses+PWM technology
<35%(6pluses at 100%load)or<5% (PWM at 100% load)
<0.5V at static; <±1%(dynamic,0-100%load)
400Hz (precision:0.01) or 60Hz
125% for 1minute; 150% stop output;can withstand 3 times of instant impact
Total harmonic distortion of output voltage THDu
≤1％(no load or line load )
Peak coefficient of output voltage CF
Three phase output voltage imbalance
Phase angle of three-phase output voltage
Inverter main circuit topology
Germany SKIIP fourth-generation half-bridge IPM intelligent power module constitutes a three-phase full-bridge inverter circuit
Inverter adjustment method
SVPWM space vector pulse width modulation method
Voltage stabilizing control
Instantaneous voltage waveform feedback control method
Inverter switch frequency
PWM Drive Transmission Mode
5MHZ fiber drive transmission
Sinusoidal filtering method
Three-stage sinusoidal filter at output of inverter
LCD display or touch screen display
Display input power three-phase line(phase) voltage, frequency, three-phase line current, input voltage harmonic analysis, visual power, active power, reactive power, power factor, active power meter, reactive power measurement. (Display and measurement accuracy is 0.5)
Display output power three-phase line(phase) voltage, frequency, three-phase line current, output voltage harmonic analysis, visible power, active power, reactive power, power factor, active power measurement, reactive power measurement. (display and measurement accuracy 0.5)
System Parameters Display
System operation time, DC bus voltage, power module output current, inverter switch frequency, output voltage setting value, output frequency setting value, input Transformer temperature, rectifier;Temperature, three-phase power module temperature, sinusoidal filter temperature, output Transformer temperature.
Show fault alert information graphically and permanently record all running data when a failure occurs for future analysis of the failure
Display information such as system state, operation prompt, fault location and handling method to facilitate operators operation and maintenance of equipment
Drawings Data Display
Each set of variable frequency power supply is permanently stored the drawings, instructions and other technical data of the variable frequency power supply, and it is very convenient to consult
Low pressure: 2500V/AC, 1 minute, no breakdown fire phenomenon(leakage current 10mA); High Pressure: 42 KV/AC, 1 minute, should not break through the fire phenomenon
Cold insulation resistance
Ambient temperature is -5 °C to +45 °C, and the relative humidity is 0 to 95 °C,Working for 24 hours at 100% full load,the temperature in the equipment cabin is in the range of 25 °C ± 1 °C
IP66 for equipment, fully sealed insulation; IP56 for Air conditioning
Input power supply phase sequence, phase deficit(three-phase imbalance), undervoltage, overvoltage, overcurrent, short circuit, DC bus overvoltage (protection threshold can be set )
The output power supply produces phase deficiency, undervoltage, overvoltage, Overflow, short circuit, output voltage harmonic overvalue, (protection threshold can be set )
Transformer temperature, sinusoidal filter temperature, rectifier temperature, IPM power module exceeds normal operating temperature, frequency converter power supply trips protection. (Temperature value can be set)
When the transformer temperature and the sinusoidal filter temperature reach the fan starting temperature, the corresponding fan is started for forced wind cooling. (Temperature value can be set)
Considering the control of different power loads, when the output load capacity reaches any setted value, the sound and light pre-alarm signal is issued.After the overload alarm signal is issued for 1 minute, variable frequency power supply stops to be protection(the setting can be adjustable)