APK®滤波电抗器

APK®滤波电抗器

　　在目前的电力系统中，无论是工业用还是民用越来越多的谐波源的出现，正日益加重着对电网的污染，谐振和电压畸变会致使很多其他电力设备的非正常运行甚至故障的产生，串联电抗器可以改善和避免这些情况的出现。APK电抗器具有高线性，高抗谐波能力，带防止漏磁设计，低噪音，低损耗，长寿命的特点。
    电容器和电抗器串联组合后谐振频率将低于系统*低。实现在工频下呈容性，来改善功率因数，而在谐振频率时呈感性，从而防止并联谐振避免对谐波的放大。 例如系统测出5次谐波时，如果阻抗选配得当，电容器组可吸收谐波电流30%到50%左右。

APK®Filter reactor

In the present electrical power system, either the industrial use or the civil use, more and more overtone source's appearance, is aggravating the pollution to electrical network day by day, The resonance and the voltage distortion can cause many other power equipment's unusual running and even bring breakdown , the series connected reactor may improve and avoid these situations appearance. The APK capacitor has the high linearity, high anti-overtone ability, the belt prevented leaks magnetism design, low noise, low loss, long life characteristic.
The series combination of the capacitor and reactor has zero impedance at its resonant frequency,which is the lowest against the line frequency. This series resonant circuit presents the capacitive character at the line frequency, which can improve the power factor, and it takes on the inductive character at the resonant frequency, thus it can prevent the parallel resonance from amplifying the harmonic. For instance, if there is the 5th harmonic in the system, and the impedance is chosen appropriately, the capacitor bank can absorb and eliminate 30% up to 50% of the harmonic current.

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