<dd id="zxaxa"><output id="zxaxa"></output></dd>

    <acronym id="zxaxa"></acronym>
    <acronym id="zxaxa"><sup id="zxaxa"></sup></acronym>

    <span id="zxaxa"></span>
    <ol id="zxaxa"></ol>
    High frequency current regulation
    In termes of transmission substation, the harmonic current component becomes noise to increase the amount of transmission whne the component levelis high.

    In particular, capacitor-input-type switching power supplies generate a large harmonic current and increase the burden on existing equipment. Therefore, the harmonic current needs to be regulated.
    亚洲欧美中文日韩视频久久操,青青久在线视频免费观看,99久久免费热在线精品,欧美日韩在线无码一区二区三区,免费啪视频在线观看视频