Variable frequency power source outputs the alternating current of utility power as the pure sine wave by means of AC→DC→AC conversion. The output frequency and voltage are adjustable within a certain range. AC power source is different from AC speed regulating controller used for motor speed regulation and common AC voltage stabilized power source.
The ideal AC power source features stabilized frequency, stabilized voltage, zero internal resistance and pure sine wave voltage waveform (no distortion). Variable frequency power source is very close to ideal AC power source. Therefore, the developed countries tend to use the variable frequency power source as the standard power source, so as to provide the electric devices the most excellent power-supplying environment, which is convenient to objectively test technical performance of the electric devices. The variable frequency power source mainly consists of two types: Linear Amplifying and SPWM Switching.

Notes
　　1) Custom-made specifications are available
　　2) The website specifications are only for your reference, the actual specificities depends on attached specifications.

Model/Output Capacity

SS-10KVA

SS-15KVA

SS-20KVA

SS-30KVA

SS-45KVA

SS-60KVA

SS-400KVA

Output Current

LOW

28A

42A

58A

84A

126A

168A

1112A

HIGH

14A

21A

29A

42A

63A

84A

556A

Output Voltage

　3-Phase LOW： 0-250V     HIGH： 0-500V

Output Frequency

45.0-70.0 Hz Adjustable, 400Hz (Optional)

Circuit Type

（IGBT）MPWM (Pulse Width Modulation)

Input Voltage

　Three-phase four-wire AC380V ± 15%    50/60Hz

Frequency Stability

　≤ 0.05%

Load Regulation

　≤ 0.5%-1.5% (Resistor Load)

Waveform Distortion Rate

　≤ 0.5%-1.5% (Resistor Load)

Output Instruments

Frequency Indicator, 4-digits RMS digital frequency indicator, resolution 0.1Hz

Voltage Meter, 4-digits RMS digital voltage meter, resolution 0.1V

Ampere Meter, 4-digist RMS digital ampere meter, resolution 1mA

Power Indicator, 4-digits RMS digital power indicator, resolution 1W

Power Factor Meter Resolution 0.001

Protective Devices

Over load, short circuit, over voltage, over current, over temperature protective and alarm devices.

Operating Environment

　Temperature 0～40℃ Relative Humidity 0～90%