Pro/Forums - View Single Post - Pump rated wattage vs actual power draw vs pumping power

Since87 · 11-14-2003, 09:21 AM

Some info here.

I don't think that a pump is likely to draw it's spec'd current when run dry. Electric motors draw more power as the load increases, and a dry pump will have a fairly light load (at least until the bearing surfaces wear out.)

I'll have a chance to test this though. Bruce at Cooltechnica is sending me a pump to test with a "modified sinewave" as input power. After that testing is done, I can do some dry running testing as well.

11-14-2003, 09:21 AM	#7
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	Some info here. I don't think that a pump is likely to draw it's spec'd current when run dry. Electric motors draw more power as the load increases, and a dry pump will have a fairly light load (at least until the bearing surfaces wear out.) I'll have a chance to test this though. Bruce at Cooltechnica is sending me a pump to test with a "modified sinewave" as input power. After that testing is done, I can do some dry running testing as well.