Well I'm squeezing some more power out of the GE ECM. I'll show #s from stock wireing at 12 volts and at 48 volt and the #s I got today with the 9 phase mod.
Also did an amp rpm test a few days back. I'll list those #s also in hopes theres a way to compair lathe rpm and wind/blade rpm.
Stock wireing wind test #s.
12 volt, watts only.
5 mph 0w
- mph 0w
- mph 32.50w
- mph 104w I did not test above 20 mph in this test.
- volt, watts only.
5 mph 0w
- mph 0w
- mph 120w
- mph 200w
- mph 225w
- mph 250w
Now the wind test results after the 9 phase modification. This test was done at 12 volts.
5 mph 0w
- mph, 2.5 amps 30w
- mph, 7.5 amps 97.125w
- mph, 12.5 amps 162.5w
- mph, 21.25 amps 280.5w
- mph, 28 amps 380.8w
This is a good improvement over the stock wireing scheam.
I'm going to try one more wireing mod and then do another wind test.
Here are the bench test #s from several days back. I powered the ECM with a 2.5 hp tredmill motor and a 25 amp 0 to 160 volt dc power supply. I tracked rpm with an infered lazer remote tack. This was a 12 volt test.
5 amps, 660 rpm, 13 volts, 65 watts
- amps, 785 rpm, 14 volts, 140 watts
- amps, 935 rpm, 14.5 volts, 217.5 watts
- amps, 1102 rpm, 15 volts, 300 watts
- amps, 1380 rpm, 15.6 volts, 390 watts
- amps, 1500 rpm, 19 volts, 570 watts
You can see why at 30 amps and 19 volts I stoped testing real fast. I was using 3 good size car batteries as a load.
I hope to draw a compairison between bench rpm and the wind test to aproximate blade rpm at vairius mph.
JK TAS Jerry