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question on three phase??
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<blockquote data-quote="ProDave" data-source="post: 234745" data-attributes="member: 6969"><p>Just to add a bit to the above, the way it works out, is if say one phase is right at it's extreme positive voltage, the next phase will be somewhere part way through it's negative cycle. Hence why the phase to phase voltage is higher than phase to neutral (or star point)</p><p></p><p>A quick google finds this picture <a href="http://www.google.co.uk/imgres?imgurl=http://www.coilgun.info/northrup/images/p308_fig4_5.jpg&amp;imgrefurl=http://www.coilgun.info/northrup/theory.htm&amp;h=558&amp;w=593&amp;sz=48&amp;tbnid=Mr7yD-OCpbCHgM:&amp;tbnh=90&amp;tbnw=96&amp;prev=/search%3Fq%3D3%2Bphase%2Bdiagram%26tbm%3Disch%26tbo%3Du&amp;zoom=1&amp;q=3+phase+diagram&amp;docid=YQy4dwDwcO-oZM&amp;hl=en&amp;sa=X&amp;ei=i47iTpydIIm3hAfTgd3tAQ&amp;ved=0CDgQ9QEwAw" target="_blank">Phase diagram</a></p><p></p><p>That shows the voltage of the 3 phases over time. At any instant, it's clear that the voltage between phases is higher than each phase individually.</p></blockquote><p></p>
[QUOTE="ProDave, post: 234745, member: 6969"] Just to add a bit to the above, the way it works out, is if say one phase is right at it's extreme positive voltage, the next phase will be somewhere part way through it's negative cycle. Hence why the phase to phase voltage is higher than phase to neutral (or star point) A quick google finds this picture [URL="http://www.google.co.uk/imgres?imgurl=http://www.coilgun.info/northrup/images/p308_fig4_5.jpg&imgrefurl=http://www.coilgun.info/northrup/theory.htm&h=558&w=593&sz=48&tbnid=Mr7yD-OCpbCHgM:&tbnh=90&tbnw=96&prev=/search%3Fq%3D3%2Bphase%2Bdiagram%26tbm%3Disch%26tbo%3Du&zoom=1&q=3+phase+diagram&docid=YQy4dwDwcO-oZM&hl=en&sa=X&ei=i47iTpydIIm3hAfTgd3tAQ&ved=0CDgQ9QEwAw"]Phase diagram[/URL] That shows the voltage of the 3 phases over time. At any instant, it's clear that the voltage between phases is higher than each phase individually. [/QUOTE]
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question on three phase??
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