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<title><![CDATA[EC21 Product Catalogs - hige frequency]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/hige_frequency--2673/1/hige frequency.html]]></link><item>
<title><![CDATA[CROSS-TYPE Zig-Zag ECO HYBRID TRANSFORMER]]></title><link><![CDATA[https://dodotrad.en.ec21.com/CROSS_TYPE_Zig_Zag_ECO--12066796_12068395.html]]></link><description><![CDATA[frequency of the power system, and this the waveforms are called harmonics and are expressed in &quot;Fourier Series&quot;. 
That is sinusoidal wave 60Hz(h=1), three times 180Hz(h=3), and seven times 420Hz(h=7]]></description><pubDate><![CDATA[20260308]]></pubDate></item>

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