1, power frequency inverter in low power, the cost is higher than the high frequency inverter.

2, power frequency inverter weight and volume are larger than the same power of the high frequency inverter.

3. The efficiency of power frequency inverter is lower than that of high frequency inverter. The iron loss is basically unchanged when running at full load and light load, so the no-load loss of power frequency inverter is relatively large when running at light load.

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