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Phase rotation
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<blockquote data-quote="Rikki" data-source="post: 508181" data-attributes="member: 33677"><p>Hey guys just wanted opinions.....</p><p></p><p>I am adding a 3ph 63a switch fuse into the main DB in a warehouse.... now I tested phase rotation, and on the left handside of board I am getting L1/L2/L3. </p><p></p><p>on the right handside of the board I am getting L1/L3/L2! so I guess there has been a crosss within the bars behind somewhere. </p><p></p><p>I know previously they had problems with some 3ph motors, so they swapped phases at load ends. I believe I should install my equipment in the correct sequence as at the board (Br/Gy/Blk) to match L1/L3/L2 and mark up correctly at board. Do you guys agree with this? With regards good practise my head is telling me that I should resolve the problem at board and also at motor isolators too. </p></blockquote><p></p>
[QUOTE="Rikki, post: 508181, member: 33677"] Hey guys just wanted opinions..... I am adding a 3ph 63a switch fuse into the main DB in a warehouse.... now I tested phase rotation, and on the left handside of board I am getting L1/L2/L3. on the right handside of the board I am getting L1/L3/L2! so I guess there has been a crosss within the bars behind somewhere. I know previously they had problems with some 3ph motors, so they swapped phases at load ends. I believe I should install my equipment in the correct sequence as at the board (Br/Gy/Blk) to match L1/L3/L2 and mark up correctly at board. Do you guys agree with this? With regards good practise my head is telling me that I should resolve the problem at board and also at motor isolators too. [/QUOTE]
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