Going to look at used American Rotary converter

Andy FitzGibbon said:

I have an email in to American Rotary, but figured I'd ask for opinions here too.

Going to look at a used American Rotary converter tomorrow. According to the tag, the panel is good for 20hp max start and 60hp total load, but the generator is 15KW/50 amps. It seems to me that the generator would be a bit undersized for the panel ratings, but I am far from an expert. What say you all?

Full specs:
Panel (model PCBR-WS-20-WM):
HP: 20
KVa: 19.8
Volts in/out: 240/240
Hz: 60
FLA (3 PHASE): 54
FLA (1 PHASE): 93.4
Max total load (HP/kVa): 60/59.4
Max single load (HP/kVa): 20/19.8
Min single load: N/A
Largest motor start (HP): 20*
*based on light load

Generator:
HP: 15kW
Voltage: 230/460
Amps: 50/25
RPM: 1800

I'm hoping to use this to run several motors in my shop, ranging from 2hp to a 10hp (28 FLA) that's powering my American Pacemaker lathe. It's a one man, light use shop.

Thanks,
Andy

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Ianagos said:

I’m about to purchase an ad30 and the guy said that was minimum for 15hp spindle on a cnc. Supposed to be up to 30hp total.

Now does anybody have any words about American rotary? They seem like they have a good support and they gave me a very good price on the converter. Free shipping aswell.

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Andy FitzGibbon said:

Thanks guys. They do seem to have a good reputation, and have a lot of recognition in the phase converter world.

My concern with this particular unit is that the generator seems a bit undersized for the ratings on the panel. The generator is a true Baldor "induction generator" with no shaft, not just a random 3 phase motor... but because it's a used unit, it's possible that the two pieces were not sold together/matched appropriately.

Andy

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Rob F. said:

A quick phone call to American Rotary will answer your question.

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Andy FitzGibbon said:

I have an email in to them.

Andy

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