matredd
New Member
Hello everyone! I'm new to the forum and still learning a lot.
I built a mobile cart with the following
- EG4 3000EHV-48
- 2x EG4 LifePower4 48V 100AH Server Rack Batteries in parallel
- 6x 310W used REC solar panels from SanTan (have a pallet of 22 but only using 6 in initial tests)
AC charging and inverter output all seem to be working well.
I tested PV input for the first time yesterday. 6x 310W panels wired in series. They're in an area that is partially shaded. I'm using 35ft of 10GA wire. My multimeter shows around 250V before connecting the series array to the EG4 3000EHV-48. When first connected, the 3000EHV-48 also picks up around 250V but after it begins to use the panels (10-20 seconds in), the voltage drops to 120v. While observing the PV input voltage on the 3000EHV-48, it seems like the voltage begins to climb up a bit to around 150-160 and then the voltage immediately drops to 120v. As I understand it, 120v is the minimum PV input voltage for this inverter.
The wattage generated varied with the shade (obviously). I saw as high as 600+ watts for a moment but most of the day, it was only around 80-120 watts. I'm wondering if the low wattage is due to the voltage drop? These panels are temporarily placed on the ground. Right now, I'm just testing to determine the ideal location.
Any input/advice would be much appreciated. I'm still searching the threads for a similar experience. Hopefully it's something simple!
I built a mobile cart with the following
- EG4 3000EHV-48
- 2x EG4 LifePower4 48V 100AH Server Rack Batteries in parallel
- 6x 310W used REC solar panels from SanTan (have a pallet of 22 but only using 6 in initial tests)
AC charging and inverter output all seem to be working well.
I tested PV input for the first time yesterday. 6x 310W panels wired in series. They're in an area that is partially shaded. I'm using 35ft of 10GA wire. My multimeter shows around 250V before connecting the series array to the EG4 3000EHV-48. When first connected, the 3000EHV-48 also picks up around 250V but after it begins to use the panels (10-20 seconds in), the voltage drops to 120v. While observing the PV input voltage on the 3000EHV-48, it seems like the voltage begins to climb up a bit to around 150-160 and then the voltage immediately drops to 120v. As I understand it, 120v is the minimum PV input voltage for this inverter.
The wattage generated varied with the shade (obviously). I saw as high as 600+ watts for a moment but most of the day, it was only around 80-120 watts. I'm wondering if the low wattage is due to the voltage drop? These panels are temporarily placed on the ground. Right now, I'm just testing to determine the ideal location.
Any input/advice would be much appreciated. I'm still searching the threads for a similar experience. Hopefully it's something simple!