snowbank
New Member
So I think I am getting a better understanding of how the strings and inverters work, but this still has me a bit confused.
So lets assume the inverter has max solar voltage input per mppt of 500 volts. The max amp stated on the inverter per mppt is 26 amps.
From my understanding it is very important not to go over max voltage otherwise risk destroying the inverter. But I have been told that if the amps exceed the amount the inverter wants that you will just clip the output of the solar panels and the inverter should be fine because amps are pulled not pushed.
So if this is correct what am I missing in this context.
If you have a power system in a vehicle or something else you typically have your battery/alternator connected to a fuse panel and from there your accessories draw their power. The fuses are in the system to simply protect the wiring or device in the case of a short in the system or a device fails and tries to draw to many amps. Even though many more amps are available at the fuse box they are not pushed to the device thus you could have a main fuse of say 50 amps but secondary fuse of 15 amps because the device is only rate to pull say max 12 amps or your wire is only rated for 15 amps.
If I have the above correct, then why can I not take my solar panel strings let say I have 10 strings, each string has a max voltage of 500 volts and max amp rating of 14amps and parallel them all into one line so that would be a voltage of 500 amps and max amperage of 140 amps. Then run that line the 500ft or whatever to where the inverters are located. At the inverter location have essentially a splitter/fuse box like you would have in a vehicle and tap off the main line to each inverter, and you could even protect each line with a fuse or breaker.
Is it that the inverter will try to max out to its watt capacity, and thereby if the voltage is lower due to shading or cloudy day, then it would try to pull way more amps than it is rated for and by having the splitter it would just blow the fuse or wreck the inverter. Or am I missing something else.
Thanks
So lets assume the inverter has max solar voltage input per mppt of 500 volts. The max amp stated on the inverter per mppt is 26 amps.
From my understanding it is very important not to go over max voltage otherwise risk destroying the inverter. But I have been told that if the amps exceed the amount the inverter wants that you will just clip the output of the solar panels and the inverter should be fine because amps are pulled not pushed.
So if this is correct what am I missing in this context.
If you have a power system in a vehicle or something else you typically have your battery/alternator connected to a fuse panel and from there your accessories draw their power. The fuses are in the system to simply protect the wiring or device in the case of a short in the system or a device fails and tries to draw to many amps. Even though many more amps are available at the fuse box they are not pushed to the device thus you could have a main fuse of say 50 amps but secondary fuse of 15 amps because the device is only rate to pull say max 12 amps or your wire is only rated for 15 amps.
If I have the above correct, then why can I not take my solar panel strings let say I have 10 strings, each string has a max voltage of 500 volts and max amp rating of 14amps and parallel them all into one line so that would be a voltage of 500 amps and max amperage of 140 amps. Then run that line the 500ft or whatever to where the inverters are located. At the inverter location have essentially a splitter/fuse box like you would have in a vehicle and tap off the main line to each inverter, and you could even protect each line with a fuse or breaker.
Is it that the inverter will try to max out to its watt capacity, and thereby if the voltage is lower due to shading or cloudy day, then it would try to pull way more amps than it is rated for and by having the splitter it would just blow the fuse or wreck the inverter. Or am I missing something else.
Thanks
