Post by Admin on Sept 15, 2018 14:36:36 GMT
Jul 3, 2018 19:40:57 GMT Guest said:
Been using this system for 6 months. Now the 60 amp breaker trips under load at midday sun. 1500 watts 5x100 panels series parallel. 6 gage wire from controller to battery. 8 foot cable. 8 x 12 volt x 114 ah lead acid batteries at 24 volts. Tried new breaker same thing. 60 amp mppt controller
Ok it was a typo not 5 but 15.... That makes sense.... You need a larger CC.... I bet you live where it's been very hot?
Jul 4, 2018 14:29:45 GMT Guest said:
live in florida. 60 amp is supposed to do 1600 watts at 24volts.
Jul 4, 2018 14:47:24 GMT Guest said:
I have a 2500 watt pure sinewave inverter. The cc, the batteries and the inverter are connected to the same positive pole on the battery. Perhaps switching the cc to the main lug on the positive pole would help. Perhaps a bigger ground to the cc. I ran 6 gage same as runs to battery. It trips when getting about 1150 watts from sun and using 1100 watts on dishwasher mid day.
Jul 4, 2018 15:27:38 GMT Guest said:
Trips with light load too. Seem to be about when receiving 1150 watts from the sun. Threw a couple of towels over panels trying to keep it running. Don't know why it started doing this. Maybe two more batteries would help. Already replaced the breaker. I isn't that.
No need getting more batteries... It's the heat from the Sun they are producing more power.... I would just take two panels out of the system and see what happens? Your very close to the limit on your CC...
Jul 5, 2018 1:10:40 GMT Guest said:
Its not overloading the cc. The 20amp breaker from the solar to the cc is fine. Its overloading transfer from cc to the batteries 60 amp breaker. The best I have ever seen is 1350 watts. I forget the amps. I threw a couple of towels over the panels and it stayed fine through midday sun. I don't know why it just started doing this. Perhaps I have a bad battery that resists energy transfer. I have the panels in 3 banks of 5 as directed in series parallel.