电力谐波干扰导致电气设备异常和事故有逐年增长的趋势，电力系统谐波已成为威胁电力系统和其它用电负荷安全运行的“电力公害”。
The growing tendency of the abnormity and accident which caused by the harmonic wave has already become the social harmfulness in the power system.
电力谐波干扰导致电气设备异常和事故有逐年增长的趋势，电力系统谐波已成为威胁电力系统和其它用电负荷安全运行的“电力公害”。
The growing tendency of the abnormity and accident which caused by the harmonic wave has already become the social harmfulness in the power system.
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