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3ph DOL star/delta (auto changeover)
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<blockquote data-quote="kme" data-source="post: 9159" data-attributes="member: 113"><p>Think its just old m8.</p><p></p><p>I`ve been gleaning info, and, from what I`m told, they had a guy look at it some 7 or 8 years ago, when the compressor wouldn`t work. He diagnosed fault on one pole of the motor contactor (I agree), and, because the owners were tighter than a duck`s bum, they said fix it without buying a new contactor.</p><p></p><p>New owner since, and now that its playing up, he wants it sorted! It supplies ALL the air for the garage, workshops &amp; bodywork &amp; spray booths.</p><p></p><p>It seems that the original sparx`s fix was to remove the delta option, and "borrow" the delta starter for driving the compressor. So, at the moment, it doesn`t change state.</p><p></p><p>Primarily, I want to confirm that the "unused" 3 wires should be shorted through the contactor, after the motor is at running speed. "Johnny 5 need INPUT!"</p></blockquote><p></p>
[QUOTE="kme, post: 9159, member: 113"] Think its just old m8. I`ve been gleaning info, and, from what I`m told, they had a guy look at it some 7 or 8 years ago, when the compressor wouldn`t work. He diagnosed fault on one pole of the motor contactor (I agree), and, because the owners were tighter than a duck`s bum, they said fix it without buying a new contactor. New owner since, and now that its playing up, he wants it sorted! It supplies ALL the air for the garage, workshops & bodywork & spray booths. It seems that the original sparx`s fix was to remove the delta option, and "borrow" the delta starter for driving the compressor. So, at the moment, it doesn`t change state. Primarily, I want to confirm that the "unused" 3 wires should be shorted through the contactor, after the motor is at running speed. "Johnny 5 need INPUT!" [/QUOTE]
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3ph DOL star/delta (auto changeover)
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