本文论述了提高功率因数的重要作用。
This article shows the important function of improving power factor.
提高功率因数是提高电能利用率的主要手段。
Increasing power factor is main measure for increasing the utilization factor of power.
因此，提高电力系统的功率因数，已成为电力工业中一个重要课题。
Therefore, improvement of power system power factor, the power industry has become an important issue.
当选用汞灯、钠灯光源时，可按用户要求将功率因数提高到90%。
Power factor of sodium lamp and mercury lamp can be improved 90%.
当选用汞灯、钠灯光源时，可按用户要求将功率因数提高到90%。
Power factor of sodium lamp and mercury lamp can be improved 90%.
应用推荐