The harm of the high degree harmonic wave in power system was introduced and the selection of prevention and the measure of controlling the harmonic interference were put forward.
本文简要介绍电力系统中高次谐波的危害，以及选择的防治、抑制谐波干扰的措施。
The power system harmonic is the voltage sine wave of power system get distortion; electric locomotive power will have 0 to 50 harmonics.
电力系统的谐波是电力系统电压正弦波形产生畸变，电力机车用电会产生0次到50次谐波。
In this paper, the power problem of completely wave rectifier is discussed by many methods respectively, such as harmonic analyses.
利用谐波分析等方法分别探讨单相全波整流电路的功率问题。
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