I am in the process of making another Alternator welder, this time using 2 x 160A Prestolite truck alternators, 2 external 3Ph rectifiers & an 18HP Honda GX610. Electronic control of fileld coils.
The rectifier DC outputs will be in parallel to obtain the required weld current.
I need 2 alternators because each alternator is rated at 150A / 14V (2240VA), so at say 35V/160A would require 5250VA, & I am after high duty cycle use.
No issues with stick as I can trim one of the field currents to achieve reasonable current share between the 2 alternators.
However I also want to use this as a MIG power supply & I anticipate some difficulty with current sharing between the 2 alternators with voltage regulated output. Untill I test it though, it may be easy to achieve.
I would be interested if anyone else has tried this before & any details on technique to obtaining reasonable current share with dual parallel alternators in voltage regulated mode.
Thanks
The rectifier DC outputs will be in parallel to obtain the required weld current.
I need 2 alternators because each alternator is rated at 150A / 14V (2240VA), so at say 35V/160A would require 5250VA, & I am after high duty cycle use.
No issues with stick as I can trim one of the field currents to achieve reasonable current share between the 2 alternators.
However I also want to use this as a MIG power supply & I anticipate some difficulty with current sharing between the 2 alternators with voltage regulated output. Untill I test it though, it may be easy to achieve.
I would be interested if anyone else has tried this before & any details on technique to obtaining reasonable current share with dual parallel alternators in voltage regulated mode.
Thanks