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Do-It-Yourself (DIY) Question & Answer Forum
Wiring a star delta pump DOL
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<blockquote data-quote="Marvo" data-source="post: 434072" data-attributes="member: 20838"><p>We just use a 12 volt battery across one winding whilst there's an analogue DC ammeter that can measure low miliamps connected to another. You adjust the zero point of the needle using the calibration screw on the front of the meter so the needle sits somewhere above the zero then tap the winding wires momentarily onto the battery and note which way the needle makes a small deflection. Repeat with other windings and reverse them accordingly until the meter deflects the same direction regardless which winding the meter and battery are on. </p></blockquote><p></p>
[QUOTE="Marvo, post: 434072, member: 20838"] We just use a 12 volt battery across one winding whilst there's an analogue DC ammeter that can measure low miliamps connected to another. You adjust the zero point of the needle using the calibration screw on the front of the meter so the needle sits somewhere above the zero then tap the winding wires momentarily onto the battery and note which way the needle makes a small deflection. Repeat with other windings and reverse them accordingly until the meter deflects the same direction regardless which winding the meter and battery are on. [/QUOTE]
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Wiring a star delta pump DOL
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