Question about solarsystem in expedition vehicle.

Cjissy · Dec 21, 2020

I'm planning for a system in my expedition vehicle. I have done some basic schematics but I'm unsure about fuses and so on. I'm sorry if i'm just taking up your time. Its a 24 V system. The main parts (Victron) are already ordered. Any inputs?

Schematics

Dzl · Dec 21, 2020

Could you upload the schematic to imgur or some other hosting site and repost it, the forum autoshrinks images to a size taht is a little small for schematics to be read easily

Cjissy · Dec 21, 2020

Dzl said:
Could you upload the schematic to imgur or some other hosting site and repost it, the forum autoshrinks images to a size taht is a little small for schematics to be read easily

Sorry here: Schematics

HRTKD · Dec 21, 2020

What battery chemistry is that?

An 80 amp fuse to the inverter is probably too small. I'm using a 150 amp breaker for my 1000 watt inverter.

Cjissy · Dec 21, 2020

HRTKD said:
What battery chemistry is that?

An 80 amp fuse to the inverter is probably too small. I'm using a 150 amp breaker for my 1000 watt inverter.

You are correct. I see in the manual that i should have a 300 A fuse.

alvise · Dec 21, 2020

maybe you want some disconnectors at the battery main, some between solar panels and MPPT . What kind (if any) monitoring device you plan to use?

Rocketman · Dec 21, 2020

I noticed a couple of things you may want to do:

I assume those batteries are “drop-in” lithium’s.

Install a Victron BP-65 smart in front of your 12v & 24v house circuit fuse boxes. That way if you leave a light on - it will cut power before the battery bms’s do. (One unit in front of both)

Are you installing a CCGX, Cerbo, Venus or the like. System wide monitoring is very helpful.

Install a circuit breaker on both sides of the solar charge controllers. That way for testing or shutdown you can turn off the power from the panels into the charge controller. The breaker/fuse after the charge controller is to protect the wire.

alvise · Dec 21, 2020

Rocketman said:
Are you installing a CCGX, verbose, Venus or the like. System wide monitoring is very helpful.

The purpose of the CCGX is only to see the status of the system or it does any work on the optimization of the charge etc ? does anyone has played with raspberry pi to achieve the same functionality?

Rocketman · Dec 21, 2020

The CCGX's main job is system monitoring and display of system status to you, bringing everything into one place. It has some relays that can be setup to run certain functions (example auto gen start, plus more) and can save and send the info to the cloud.
It also can adjust some controls on the Multiplus - incoming Amps on shore power, plus On/Off/Charge only.

It can be setup to control the charging and discharging - so all the attached devices don't exceed a certain charge rate. If connected to a BMS through a CAN-BUS the BMS can then control charging & discharging limits.

I haven't done anything with the raspberry pi - but I have seen several posts about it on the Victron Community.

Cjissy · Dec 22, 2020

Thank you for all your inputs. I have added them all to my Schematics. I'm not sure what monitoring device I'm going to use. At first I was just going for the phone app.

Cjissy · Dec 22, 2020

HRTKD said:
What battery chemistry is that?

An 80 amp fuse to the inverter is probably too small. I'm using a 150 amp breaker for my 1000 watt inverter.

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Question about solarsystem in expedition vehicle.

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