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Student & Learning Zone - City & Guilds
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<blockquote data-quote="PoorFish" data-source="post: 56246" data-attributes="member: 1629"><p>I could give you a scanned copy of the flourescent and 3 phase circuit diagrams</p><p></p><p>hope this is of some help</p><p></p><p>you should get a bit of time to study the circuit and work out what is going where, to help you take the correct measurements.</p><p></p><p>the 3 phase is the easier of the two tasks.</p><p></p><p>using a multi meter measure the voltage through each phase and then through each of two phases. ie. phase 1 and 2,phase 2 and 3 , phase 3 and 1.</p><p></p><p>then using a clamp meter measure the current through each of the phases with a 1000w load running through each.</p><p></p><p>then with all 3 phases running with 1000w in each, measure current if any running through the neutral.</p><p></p><p>shouldnt be any if things are correctly balanced . However mine wasnt so there was a discrepancie somewhere possibly the elements in the heaters.</p><p></p><p>maybe someone may have a comment on that .</p></blockquote><p></p>
[QUOTE="PoorFish, post: 56246, member: 1629"] I could give you a scanned copy of the flourescent and 3 phase circuit diagrams hope this is of some help you should get a bit of time to study the circuit and work out what is going where, to help you take the correct measurements. the 3 phase is the easier of the two tasks. using a multi meter measure the voltage through each phase and then through each of two phases. ie. phase 1 and 2,phase 2 and 3 , phase 3 and 1. then using a clamp meter measure the current through each of the phases with a 1000w load running through each. then with all 3 phases running with 1000w in each, measure current if any running through the neutral. shouldnt be any if things are correctly balanced . However mine wasnt so there was a discrepancie somewhere possibly the elements in the heaters. maybe someone may have a comment on that . [/QUOTE]
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