Sign up with GoogleChris Hobson
Member
- Joined
- Jun 20, 2015
- Messages
- 23
Hi I live on a remote farm in the Karoo and am travelling to Port Elizabeth tomorrow (3 hours away) to collect final bits and bobs. I would like forumites to just take a peep at this list and see if there are glaring errors or omissions. I should have posted this earlier but only discovered this forum last night.
The basic installation is 12x250W panels with an Axpert 5kVA inverter and 4x12V 260Ah batteries.
I have 12 Yingli 250W panels in 4 strings of 3 connected with 4mm solar cable and fused with 8 x12A solar fuses. This will run to a combiner box and a 16mm cable will run from the box into the dwelling (17m away) connected to PV Lightening protector and 2x 40A solar fuses. Finally a DC Isolator and on into the inverter.
The batteries will be less than 2m from the inverter and 25mm cabling used 2 pole battery disconnect with 100A fuses. this is a little less than the 120A maximum but I will only be able to charge up to 10A with my current generator. The cabling will handle 120A but the max A is probably closer 80A hence the fuse at 100A. if my generator is upgraded I just need to increase the size of the fuses.
On the AC input lightening protectors and 16A breaker and power on lamp?. On the AC output 25A breaker power on lamp? and on to DB. The generator will be permanently connected to the inverter input. So inverter output replaces generator output on the DB board.
The installation may be a bit light on batteries but the generator runs at night to provide my employees with lights etc so early evening (a critical period for a PV system and there is almost no draw after 9pm (AEG solar deepfreeze and Bosch solar fridge).
Chris
The basic installation is 12x250W panels with an Axpert 5kVA inverter and 4x12V 260Ah batteries.
I have 12 Yingli 250W panels in 4 strings of 3 connected with 4mm solar cable and fused with 8 x12A solar fuses. This will run to a combiner box and a 16mm cable will run from the box into the dwelling (17m away) connected to PV Lightening protector and 2x 40A solar fuses. Finally a DC Isolator and on into the inverter.
The batteries will be less than 2m from the inverter and 25mm cabling used 2 pole battery disconnect with 100A fuses. this is a little less than the 120A maximum but I will only be able to charge up to 10A with my current generator. The cabling will handle 120A but the max A is probably closer 80A hence the fuse at 100A. if my generator is upgraded I just need to increase the size of the fuses.
On the AC input lightening protectors and 16A breaker and power on lamp?. On the AC output 25A breaker power on lamp? and on to DB. The generator will be permanently connected to the inverter input. So inverter output replaces generator output on the DB board.
The installation may be a bit light on batteries but the generator runs at night to provide my employees with lights etc so early evening (a critical period for a PV system and there is almost no draw after 9pm (AEG solar deepfreeze and Bosch solar fridge).
Chris