Inspection or maintenance, be sure to cut off all input power.
检查或维修时，请一定要切断所有输入电源。
AC input power (single phase).
AC输入功率（单相） 。
The input power factor of the converter is about 0.99.
变换器的输入功率因数较高，基本在0.99 左右。
The output power can never equal the input power, for there are always losses.
输出功率决不可能等于输入功率因为总有损耗。
The output power can never equal the input power, for there are always losses.
输出功率绝不能等于输入功率，因为总存在着损耗。
The input power factor can be arbitrarily controlled within a certain control range.
③输入侧的功率因数在一定的范围内可以控制。
The energy loss caused only by that is approximately equal to 40% of the input power.
仅此一项所造成的能源损失大约等于风机输入功率的40%。
The energy loss caused only by that is approximately equal to 40% of the input power.
仅此一项所造成的能源损失大约等于风机输入功率的40%。
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