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
To MrWizzard and Professor95;
I spoke to Budracer over the telephone, he told me what he sees and i told him what wires to move around. He put the windings into parallel according to yalls posts, Y and Bu paired, Br and Re paired at the terminal block on the gen head. the breaker feeds were paired and connected to the Y and Bu pair, the neutrals were paired and connected to the Br and Re pair. Started the gen, voltage meter reads 4v, apply a ceramic heater load, no change on meter and heater dosent work. Thinking that the windings were "fighting" each other, i told him to reverse the Bu and Re wires coming from the windings. Started the gen, voltage meter reads 0v and the gen is quite "loaded down" sounding. Quite sure that is not what we need, as they are obviously "fighting", so the Bu and Re go back to the way they were. After much head scratching I came to the conclusion that this gen cannot support phase reversal, so budracer put everything back to OEM spec.
In talking with Budracer he told me that when he uses the twistlok dogbone, he gets very low voltage and breaker tripping. However, if he uses a 15A to 30A "hockey puck" adapter plugged into the 20A outlet he can run his rig A/C and microwave with no problems. This is make'n me think that there might be something wrong with one of the two windings or the AVR. I recommended that he "reverse" or "swap" the two hot lines feeding the twistlok, in order to get his rig load onto the properly working winding. While not ideal, this setup "may" still be ok for what budracer needs it for. I say "may" because he hasn't tried the rig with the twistlok dogbone and the hots swapped yet.
But the question for the experts is, A; How can you tell beforehand is a gen will or will not support phase reversal? and B; What would explain the severe voltage drop on winding "A", but no drop when the same load is applied to winding "B"?
I spoke to Budracer over the telephone, he told me what he sees and i told him what wires to move around. He put the windings into parallel according to yalls posts, Y and Bu paired, Br and Re paired at the terminal block on the gen head. the breaker feeds were paired and connected to the Y and Bu pair, the neutrals were paired and connected to the Br and Re pair. Started the gen, voltage meter reads 4v, apply a ceramic heater load, no change on meter and heater dosent work. Thinking that the windings were "fighting" each other, i told him to reverse the Bu and Re wires coming from the windings. Started the gen, voltage meter reads 0v and the gen is quite "loaded down" sounding. Quite sure that is not what we need, as they are obviously "fighting", so the Bu and Re go back to the way they were. After much head scratching I came to the conclusion that this gen cannot support phase reversal, so budracer put everything back to OEM spec.
In talking with Budracer he told me that when he uses the twistlok dogbone, he gets very low voltage and breaker tripping. However, if he uses a 15A to 30A "hockey puck" adapter plugged into the 20A outlet he can run his rig A/C and microwave with no problems. This is make'n me think that there might be something wrong with one of the two windings or the AVR. I recommended that he "reverse" or "swap" the two hot lines feeding the twistlok, in order to get his rig load onto the properly working winding. While not ideal, this setup "may" still be ok for what budracer needs it for. I say "may" because he hasn't tried the rig with the twistlok dogbone and the hots swapped yet.
But the question for the experts is, A; How can you tell beforehand is a gen will or will not support phase reversal? and B; What would explain the severe voltage drop on winding "A", but no drop when the same load is applied to winding "B"?
