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Reply to "Wiring Ammeters"

@LIRR-Jim posted:

Recently I made a post regarding a power problem I was experiencing.  The suggestion was that I add more power which I did.  I augmented the 2 135w Powerhouses with two 2 180w.  After adding the first 180w powerhouse the problem indeed went away.   I decided I would like to monitor power consumption so I added a 0-10A Ammeter to each supply expecting that a 135w would show about 7.5 amps and a 180w about 10 amps at full capacity.   What I am seeing is about 6 amps total across all 4 sources, about half the capacity of the original 2x135 arrangement.   What am I missing, if anything?  I'm using I(A) = P(W) / (PF × V(V)) via the calculator at https://www.rapidtables.com/ca..._Amp_Calculator.html.  The meters are https://www.amazon.com/gp/prod...00?ie=UTF8&psc=1 wired in series on the A side (red) between the lockon and the load.    As always Thanks.

Clearly, two PH135 transformers in parallel should be able to provide more than 6A and maintain their rated output voltage, so I'd say something else was afoot there.

I think we'd need to know more about the exact configuration and circumstances of the power drop to analyze what is really happening.  This doesn't sound like the typical "insufficient" current supply situation.

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