ZHEJIANG SANDI ELECTRIC CO.,LTD
AC/AC frequency converter 3 phase to 3 phase converter

AC/AC frequency converter 3 phase to 3 phase converter

Send Inquiry
Technical Features:
  • The input voltage, output voltage, frequency and phase can be custom made.
  • Two kinds of start mode: Step Down Voltage Start and Variable Frequency Start. VFD is especially used for taking 3 phase inductive load more easily. This function is very convenient for users and also reduce frequency converter usage, which reduced the cost of equipment investment, easy to connect wires and control.
  • Output AC Power is suitable for all types of home appliances,electric tools, electric motors etc.
  • Using the fifth generation efficient IPM intelligent module from Japanese Mitsubishi, high efficiency and stable performance. It with powerful protection function for short circuit, over load,over temperature. Service life can reach 15-20 years.
  • Pure sine wave output. with good transient response, little harmonic distortion, higher conversion efficiency and stable output voltage features.
  • Adopted low frequency isolated transformer, safe and reliable, single phase input power is completely isolated from three phase output power, high conversion efficiency, high instantaneous power, stable performance and low load loss.
  • Adopts new magnetism material, largely reduce machine consumption, making efficiency maximum up to 98%.
  • Adopts America DSP chip, safe and reliable.
  • Adopts black pure aluminum radiator, which confirms the best radiating performance
  • Converter has the function of filtering the grid disturbance and interference at the same time,which is a good performance of stabilized voltage and frequency power, to provide a more stable and pure power supply environment for the back end devices
  • Intelligent fan speed control system, low no-load loss
  • LCD display, high efficiency, easy installation
  • The output frequency 50Hz/60Hz can be set

Technical Data

Model SDT-25KW
Isolation LowFrequencyTransformer
ACInput Inputratedvoltage(VAC) 3phase400V/60Hz(L1,L2,L3-N230V.L1-L2-L3400V)
Inputratedcurrent(A) 36A(phasecurrent)
InputFrequency 60Hz±0.05Hz
ACOutput RatedACoutputpower 25KW
ACoutputwaveform Puresinewave
Phases Threephase4wires+ground
Outputratedvoltage 400VAC±3%(L1,L2,L3-N230V.L1-L2-L3400V)
OutputFrequency 50Hz±0.05Hz
Outputratedcurrent(A) 36A(phasecurrent)
PowerFactor(PF) >0.95
OverloadAbility 150%,10s
Efficiency >94%
Waveformdistortionrate(THD) <3%(Linearload)
CrestFactor(CF) 3:1
Display LCD
Electricalinsulationproperties 2500Vac,1Minute
Ambienttemperature -15~+55℃
Usingenvironmenthumidity 0~90%,Nocondensation
Protection Inputundervoltage,overvoltage,outputover-current,shortcircuit,overheatingetc.
Structure Coolingmethod Fan-cooled
Noise <40dB
Degreeofprotection IP20(indoor)
Usingaltitude(m) 3000
Dimensions(mm) 700x600x1100mm
Weight(Kg) 250Kg
CEStandard EN60950-1:2006+A11:2009,EN61000-6-4:2007+A1:2001,EN61000-6-2:2005,EN61000-3-12:2005,EN61000-3-11:2000