Right now for testing I am using a simple DIY regulator.@Hayden Watson, thanks for the write-up. Looking good. I agree with not powder coating anything that needs to shed heat. I'm working up a 225-250A alternator with serpentine for a 3 cyl Perkins. Balmar only has a dual-V and I know how much you love them. I am looking elsewhere for this project. Electromaxx might have a pulley kit and the alternator is TBD.
What did you use for the voltage regulator? Did you go with the Arco Zeus?
- It is a voltage switch that allows me to turn on and off a relay at a fixed voltage. (14.2v off, 13.5v on)
- The source power to the relay comes through an Inkbird thermostat which I have set to 190ºF with the thermistor on the Alt temp mount provided by TAE.
- The output of the relay goes to a 30A PWM controller which provides me with full control of the alternator output.
- The field current from the PWM currently has a couple of 0.5-ohn 100W power resistors in serise that limits the output of the 250A down to 150A max with full field.
- Once I am satisfied with the performance at 150A I will lower the resistance to just one of the 0.5-ohm resistors to get up to about the 190A I am targeting.
- This is done for testing and data collection so that I will be able to assess the affects on alternator and engine performance.
