I did look at a some of the threads here regarding the Snubber circuit, and did not come across one that I thought would meet my needs. Ok, before you tell me that I will not see any significant difference in automatically switching my 2 SOLAR panels (30 volt) between a SERIES circuit or a PARALLEL circuit automatically, I need to prove it to my self. It is just the way I am. So, I am including an attachment with the circuit. The relay I am struggling to locate is a "Break before Make" that will handle 10 Amps. I am looking at inserting a 30 amp Wind Turbine blocking diode, just in case there is a relay malfunction. What I am looking at is when the circuit is triggered to go from SERIES to parallel as the 20 amps will probably cause an arc between the relay contacts and the SOLAR charge controller (Morningstar MPPT TS- 60). I have a few of the blocking diodes from a previous project, so now I need to suppress the 20 amps when they switch from SERIES. I do not believe that the 60 volts (9 amps) will have an affect on the circuit as much as the PARALLEL design. Any thoughts and parts... Originally, was thinking of an MOV.
Automating the switching will be done with either an Arduino or Raspberry Pi2, and measuring the current that is being generated by the panel(s), Will add a shunt to each of the panels to better make the decision as to PARALLEL or SERIES. Along with a photo cell in a frosted cup to measure the intensity of the sun/clouds...
Thanks in advance for any assistance,
Don
Automating the switching will be done with either an Arduino or Raspberry Pi2, and measuring the current that is being generated by the panel(s), Will add a shunt to each of the panels to better make the decision as to PARALLEL or SERIES. Along with a photo cell in a frosted cup to measure the intensity of the sun/clouds...
Thanks in advance for any assistance,
Don
Last edited: