3000W Chinese Gensets Info.
professor95 wrote: EDIT ADDED 45/5/2013- When this thread started in March of 2005, I never expected to see it survive this long or amass the quantity of information that has been shared here. In...
Forum Discussion
Well I just purchased a PP3500 from PepBoys used it over the weekend on the 5th wheel w/no problem. But after reading the posts regarding putting the coils in parallel decided to do a test. With orignal wiring and using a Fluke multimeter with amp clamp and have a 2 gang pigtail I hooked up a 2hp compressor with a name plate rating of 13a, a skillsaw with a rating of 13a and another circular saw with a rating of 13a. The initial voltage reading with no load on 20a(brown leg) outlet was 124vac and 125vac on the twistlock(blue leg) and 244 between the two.
Now with all three loads attached to the 20a receptacle first I turned on the comp. running current meas. 10a. voltage meas. 117vac. Now adding in the skillsaw engine slowed momentarily but picked up after 1-2 secs amp reading 19a volt reading is 109 vac. Turning on last saw engine slowed and never did quite come back to original rpms amp reading was 27a voltage was 100vac. I did not let it run like this long, maybe 30-40 secs max. The breaker never tripped.
Now using the 30a twistlock (blue leg) performing the exact same sequence 1st the comp amps read 10a volts=123vac. Then adding the skillsaw amps=18a volts=119vac then finally the other saw again the rmps slowed but did eventually catch up to what sounded near the original and amps=27a and volts=113 and continued to run this for 3 min without any problems.
Now deciding to try out Wyatt-S's mod by putting both coils in parallel. I changed the connections at the gen terminal strip behind the end cap. By moving the Red wire coming from the gen coils to the Brown terminal. Then taking the Red going out to the panel and placing that on the Blue terminal. I then fired up the gen. Took a reading with the fluke at all receptacles and the were as follows all read 124vac. And the factory volt meter read approx the same.
Now following the same procedure as before the comp initail readings were amps=12 volts=120vac. But then as soon as I turned on the skillsaw the breaker immediately tripped. Very puzzling. I would have thought as most everyone else by placing coils in parallel that it would provide more available current. But after checking and double checking the connections in fact unterminating and reterminating with the same results.
Then restoring back to the original wiring performed the same test with the same results. Mostly to check to see if I did any damage.
At this point I'm not sure if there is any benefit to rewiring.
Any Ideas more than welcome. Maybe I missed something....
Now with all three loads attached to the 20a receptacle first I turned on the comp. running current meas. 10a. voltage meas. 117vac. Now adding in the skillsaw engine slowed momentarily but picked up after 1-2 secs amp reading 19a volt reading is 109 vac. Turning on last saw engine slowed and never did quite come back to original rpms amp reading was 27a voltage was 100vac. I did not let it run like this long, maybe 30-40 secs max. The breaker never tripped.
Now using the 30a twistlock (blue leg) performing the exact same sequence 1st the comp amps read 10a volts=123vac. Then adding the skillsaw amps=18a volts=119vac then finally the other saw again the rmps slowed but did eventually catch up to what sounded near the original and amps=27a and volts=113 and continued to run this for 3 min without any problems.
Now deciding to try out Wyatt-S's mod by putting both coils in parallel. I changed the connections at the gen terminal strip behind the end cap. By moving the Red wire coming from the gen coils to the Brown terminal. Then taking the Red going out to the panel and placing that on the Blue terminal. I then fired up the gen. Took a reading with the fluke at all receptacles and the were as follows all read 124vac. And the factory volt meter read approx the same.
Now following the same procedure as before the comp initail readings were amps=12 volts=120vac. But then as soon as I turned on the skillsaw the breaker immediately tripped. Very puzzling. I would have thought as most everyone else by placing coils in parallel that it would provide more available current. But after checking and double checking the connections in fact unterminating and reterminating with the same results.
Then restoring back to the original wiring performed the same test with the same results. Mostly to check to see if I did any damage.
At this point I'm not sure if there is any benefit to rewiring.
Any Ideas more than welcome. Maybe I missed something....
