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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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3 phase rotation direction?
Winston wrote: I Googled but didn't find anything that would work quickly. Who makes an inexpensive tester that I can plug into 208 V 3 phase L14-30 outlets to determine phase rotation? I'm aware of this circuit but I want something I can buy at the Borg and leave at a worksite: http://www.opamp-electronics.com/tut...on_2_10_03.htm --Winston You won't find one at the Borg, since they don't carry anything three phase. You will find them at most any real electrical supply house for ~$100 or so. The good thing is that those phase rotation meters usually also include motor test functionality so you can identify the leads from an unpowered three phase motor as long as you can manually turn it more than half a turn. |
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