All ActivityMost RecentMost LikesSolutionsRe: 3000W Chinese Gensets Info. LooseNut wrote: chrisser wrote: . . . One thing I noticed is that, above the engine, there's a loose wire tied up. There's no schematic in the manual. I'm sorta curious what the wire is for, but I haven't had the time to trace it. I also noticed the loose wire (blk/wh). I looked at it briefly. My only slightly educated guess at this point is that it will stop the engine if grounded. I did call the number on the front of the owners manual and they were able to send me a wiring diagram by email. Ask for the wiring diagram for the APG3012 if you call. The diagram is a poor jpg copy of a poor pdf file. The schematic drawing is ok, but the writing is not easily decipherable. (I can send it to you if you want.) Also, the schematic does not exactly depict the genset wiring, but it's close (e.g., the loose wire is not shown on the schematic, the schematic shows only one main winding but the alternator appears to have two, and the little module that the oil level switch connects to is shown to have three wires on the schematic but actually has a four wire connection, some day I'm going to figure out what exactly is inside that module). The genset is really pretty generic. The alternator appears to have two main windings that are paralleled inside the alternator on the terminal block. Therefore, it appears that this unit could be rewired for 240 volt operation. Mike Here's some more information on the KingCraft (All Power America) generator: voltage regulation 120 volts at no load, 121 volts at 2,200 watts frequency regulation 62 Hz at no load, 59 Hz at 2,200 watts Here are some pictures of the AC waveform, not great but not too bad, (the only camera I have that can take digital pictures is a Kenwood VC-H1 which takes poor quality pictures), and the schematic such as it is. The generator ran a cheap digital clock just fine, so microwave oven timers should not run fast. 0 Watts 500 Watts 1600 Watts 2200 Watts APG3012 Schematic At light loads there is a slight ripple on the waveform which diminishes at higher loads. The waveform departs from a sine wave at heavier loads but should be fine for just about any device. The DC output was really ugly, but that's to be expected. MikeRe: 3000W Chinese Gensets Info. chrisser wrote: . . . One thing I noticed is that, above the engine, there's a loose wire tied up. There's no schematic in the manual. I'm sorta curious what the wire is for, but I haven't had the time to trace it. I also noticed the loose wire (blk/wh). I looked at it briefly. My only slightly educated guess at this point is that it will stop the engine if grounded. I did call the number on the front of the owners manual and they were able to send me a wiring diagram by email. Ask for the wiring diagram for the APG3012 if you call. The diagram is a poor jpg copy of a poor pdf file. The schematic drawing is ok, but the writing is not easily decipherable. (I can send it to you if you want.) Also, the schematic does not exactly depict the genset wiring, but it's close (e.g., the loose wire is not shown on the schematic, the schematic shows only one main winding but the alternator appears to have two, and the little module that the oil level switch connects to is shown to have three wires on the schematic but actually has a four wire connection, some day I'm going to figure out what exactly is inside that module). The genset is really pretty generic. The alternator appears to have two main windings that are paralleled inside the alternator on the terminal block. Therefore, it appears that this unit could be rewired for 240 volt operation. MikeRe: 3000W Chinese Gensets Info. chrisser wrote: Don't know if anyone's interested in a smaller version of these generators at a pretty decent price but... Aldis has a 2500w/3250w 6.5hp on sale now for $199. http://www.aldifoods.com/us/html/offers/58_9093_ENU_HTML.htm I picked one up tonight. Haven't had the chance to start it yet (I need to fill the gas can) Got it out of the box and it's manufactured by JD with a build date of June. Has two 110 outlets and a set of 12vdc terminals with an 8 amp breaker. No twistlock or RV type plug. For our needs in our small trailer with no AC, it is likely a great fit at a great price, but YMMV. OTOH, for $200, it'd be a nice backup generator too. I went to two local Aldis. One had 3 left, the other had 5. For the price I couldn't resist. I got the last one a week ago at the local Aldi. I wanted one for an LPG conversion for house emergency power. I have determined that this generator is a relabeled All Power America APG3012 generator, http://www.allpoweramerica.com/productdetails.php?id_prd=94, so there is after sale support for this generator. Also, it appears that Aldi has this generator, and another larger one, on sale periodically, so if you want one, keep checking the weekly ad. MikeRe: 3000W Chinese Gensets Info. tvman44 wrote: MrWizard wrote: you could parallel the windings and put full amps at 120 on the twist lock and use a twist lock to RV adapter, use only (1) of the 23 amp breakers , but you might trip out the breaker when it comes time to run the A/C and the MW at the same time the current configuration is 1 winding per duplex and 230v at 23amps at the twist lock, no way to go to 120 only with out moving wires, whether its cutting, or unscrewing, things have to be moved It is not phase reversal you are trying to do. It is parralleling the 2 winding in phase. Out of phase is what you got when the ginny loaded down and put out no voltage. As to why only 4 volts when in phase that is a tough one. This thread has been very entertaining and informative. Maybe I can offer some insight to the low output issue with this generator. The problem with parralleling the coils in this generator (assuming that the schematic is correct) appears to be caused by the way the AVR input voltage is derived from the main windings. The AVR voltage is obtained from a portion of *both* main windings, not just a portion of one winding as in many generators in this class. When the windings are converted from 240 volts center-tapped to parallel 120 volts, the configuration of the AVR tap points change and the voltage applied to the AVR input is probably increased (it depends on the location of the tap point), the AVR lowers the field current to bring the AVR input voltage back to what is expected and this results in the low main winding output voltage. It would be helpful to know what the normal AVR input voltage is under the original factory configuration. Depending on the normal AVR input voltage and the adjustment range of the AVR (if it is adjustable) it might be possible to reconfigure the tap points. However, it is entirely possible that this generator may not be able to be configured for full power at 120 volts without rewinding or at least moving the tap points in the main winding. Mike