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Michael A. Terrell Michael A. Terrell is offline
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Default 3 phase rotation direction?


John wrote:

Winston wrote:
PrecisiomachinisT wrote:
wrote in message
...
Winston wrote in
rec.crafts.metalworking on Wed, 26 Jan 2011 06:56:08 -0800:

Who makes an inexpensive tester that I can plug
into 208 V 3 phase L14-30 outlets to determine
phase rotation?

Could you just find a small 3ph motor and use that?


That would be way too easy...


I thought of that. Smallest gear motor I could find
cheaply was 1/2 HP!

For machine tools usually I just momentarily turn on the coolant pump
before
going any further.


I will have to rearrange my troubleshooting schedule
so that 'rotation direction' is at the top of the list.

--Winston


I've seen small fans that run on three phase, muffin fans.



The GRC-106 had small three phase 400 Hz fans.


--
You can't fix stupid. You can't even put a band-aid on it, because it's
Teflon coated.