Description
Three phase sine wave filter with rated current 20A, adapted power 7.5kW, withstand voltage 3000VAC 60/s, F insulation class. The sine filters filter out the switching frequency from the pulse width modulation (PWM) from the output of an inverter, then provide a sinusoidal motor current.
Specification
| Model | ATO-SCAR-0020 |
| Rated current | 20A |
| Adapted power | 7.5kW |
| Withstand voltage | 3000 VAC 60/s |
| Fundamental frequency | 50/60Hz |
| Carrier frequency | 4kHz |
| Insulation class | F |
| Altitude | ＜2000m |
| Working temperature | -40-85℃ |
| Voltage drop | 8%-12% |
| Weight | 14.5kg |
Dimension
| Model | L | W | H | L1 | W1 | A | B |
| ATO-SCAR-0020 | 230mm | 220mm | 245mm | 210mm | 78mm | 8mm | 14mm |
Application
Tips: What is the function of a sine wave filter?
The function of the sine wave filter is to convert the PWM wave output by the variable frequency into a sine wave. When the motor voltage is 50Hz, the distortion coefficient of the sine wave filter is about 5%.
Its main functions include two aspects:
- Adjust the waveform output by the inverter. The waveform output by the inverter is a PWM wave, which is a waveform between a square wave and a sine wave. After adding a sine wave filter, the PWM wave will be transformed into a waveform that is more like a sine wave.
- Realize the long-distance transmission of the frequency converter. In general, if the distance between the inverter and the load exceeds 50 meters, a reactor must be added. If there is a requirement for the output waveform of the inverter, a sine wave filter must be added. This distance refers to the length of the connection.
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