Thanks everyone in advance for your comments and help. I've learned a lot by reading the forum.
I'm trying to go off grid with generator backup, and have grid access for a secondary backup.
I would like to reserve space for future battery banks.
So far this is my battery to solar charge controller plan, please help me look this over and see if everything makes sense. I hope this is clear and not confusing, I tried to incorporate everything from torque specs to bolt size to make sure I have everything ready.
Some questions that I have are:
spec sheets:
EG4 Lifepower4 Spec sheet: https://signaturesolar.com/content/documents/EG4/1511006-specs.pdf
EG4 Lifepower4 Manual: https://signaturesolar.com/content/documents/EG4/EG4 Lifepower4 -manual 1.0.1.pdf
Victron Quattro 48/10,000 Spec sheet: https://www.victronenergy.com/upload/documents/Datasheet-Quattro-3-10kVA-120V-EN-.pdf
Victron Quattro 48/10,000 Manual: https://www.victronenergy.com/uploa...ttro-5k-10k-120V-(firmware-xxxx4xx)-EN-ES.pdf
Victron Power In Spec sheet: n/a
Victron Power In Manual: https://www.victronenergy.com/upload/documents/Lynx_Power_In/Lynx_Power_In-en.pdf
Victron Lynx Shunt Spec sheet: https://www.victronenergy.com/upload/documents/Datasheet-Lynx-Shunt-VE.Can-EN.pdf
Victron Power In Manual: https://www.victronenergy.com/upload/documents/Lynx_Shunt_VE.Can/Lynx_Shunt_VE_Can_Manual-en.pdf
Victron Distributor Spec sheet: n/a
Victron Distributor Manual: https://www.victronenergy.com/upload/documents/Lynx_Distributor/Lynx_Distributor-en.pdf
Victron Smartsolar MPPT RS 450/200 Spec sheet: https://www.victronenergy.com/upload/documents/Datasheet-SmartSolar-MPPT-RS-EN-.pdf
Victron Smartsolar MPPT RS 450/200 Manual: https://www.victronenergy.com/upload/documents/SmartSolar_MPPT_RS/SmartSolar_MPPT_RS-en.pdf
I'm trying to go off grid with generator backup, and have grid access for a secondary backup.
I would like to reserve space for future battery banks.
So far this is my battery to solar charge controller plan, please help me look this over and see if everything makes sense. I hope this is clear and not confusing, I tried to incorporate everything from torque specs to bolt size to make sure I have everything ready.
Some questions that I have are:
- I see that t-class fuses are recommended for lithium batteries, should I put a t-class fuse immediately after the positive lug on each EG4 battery? or would one bigger t-class fuse for the entire 6 EG4 battery bank suffice? Is 300 amps per battery pack way too high? what amps size should I have if I were to put 1 t-class fuse per 6 EG4 battery bank?
- The Lynx shunt has a built in CNN fuse slot, but this seems to be redundant if putting a t-class fuse after each battery or battery bank. Is this thought correct? if so I will just connect it with a copper bar.
- I have purchased the Lynx power in to reserve space for future battery banks, when I do purchase another battery bank, does it have to be the same amp rating as the first bank of 6 EG4 batteries? or can it be say 4x 48v 100amp, 7x 48v 100amp, 3x 48v 200amp, etc?
- When connecting the cables to the Lynx distributor is it advisable to:
- have each inverter staggered so that the distance to each inverter is the same? as in:
- Positive 1: Inverter 1
- Positive 2: Inverter 2
- Negative 1: Inverter 2
- Negative 2: Inverter 1
- Connect the solar charge controller in position 1 (closest to the shunt)? or inbetween the 2 inverters? or at the end furtherest from the shunt?
- have each inverter staggered so that the distance to each inverter is the same? as in:
via what cable and bolt | to what device/bus bar/fuse/etc | bolt coming off from device/busbar |
n/a | EG4 Lifepower Batteries (have 6 in parallel) | M6 bolt (6nm) |
via 4/0g (<12in) to M6 bolt (6nm) on | Fuse block w/ 150 amp t-class fuse | M8 bolt (8nm) |
via 4/0g (<=6ft) cable to ? bolt (??nm) on | Server rack bus bar | M6/M8 bolt (??nm) |
via 4/0g (<6in) cable or copper bus bar to | Battery bank cut off (in case of future additional banks) | m6/m8 bolt (??nm) |
via 4/0g (~2ft) cable or copper bus bar to M8 nut (14nm) on | Lynx power in | M8 nut (14nm) |
via 4/0g (<6in) cable or copper bus bar to | Main battery cut off | m6/m8 bolt (??nm) |
via 4/0g (<6in) cable or copper bus bar to | Lynx shunt w/ 800 amp CNN fuse M8 nut (14nm) | M8 nut (14nm) |
via built in bus bar to (no bolt) | Lynx distributor | n/a |
Lynx Distributor Position 1 | ||
via built in bus bar to | 250 or 300 amp MEGA fuse (14nm) | M8 nut (14nm) |
via 4/0g (~3ft) cable to M8 bolt (14nm) on | Victron quattro 48v/10,000va inverter | M6 bolts (7nm) |
(AC OUT) via 2g or 4g cable to | 100amp breaker on load Center | |
Lynx Distributor Position 2 (reapeated for 2nd inverter) | ||
via built in bus bar to | 250 or 300 amp MEGA fuse (14nm) | M8 nut (14nm) |
via 4/0g (~3ft) cable to M8 bolt (14nm) on | Victron quattro 48v/10,000va inverter | M6 bolts (7nm) |
(AC OUT) via 2g or 4g cable to | 100amp breaker on load Center | |
Lynx Distributor Position 3 | ||
via built in bus bar to | 250 or 300 amp MEGA fuse (14nm) | M8 nut (14nm) |
via 4/0g (~3ft) cable to M8 bolt (14nm) on | Victron Smartsolar MPPT RS 450/200 | need ferrules? |
via 10g cable to | PV isolater breakers | to panels |
spec sheets:
EG4 Lifepower4 Spec sheet: https://signaturesolar.com/content/documents/EG4/1511006-specs.pdf
EG4 Lifepower4 Manual: https://signaturesolar.com/content/documents/EG4/EG4 Lifepower4 -manual 1.0.1.pdf
Victron Quattro 48/10,000 Spec sheet: https://www.victronenergy.com/upload/documents/Datasheet-Quattro-3-10kVA-120V-EN-.pdf
Victron Quattro 48/10,000 Manual: https://www.victronenergy.com/uploa...ttro-5k-10k-120V-(firmware-xxxx4xx)-EN-ES.pdf
Victron Power In Spec sheet: n/a
Victron Power In Manual: https://www.victronenergy.com/upload/documents/Lynx_Power_In/Lynx_Power_In-en.pdf
Victron Lynx Shunt Spec sheet: https://www.victronenergy.com/upload/documents/Datasheet-Lynx-Shunt-VE.Can-EN.pdf
Victron Power In Manual: https://www.victronenergy.com/upload/documents/Lynx_Shunt_VE.Can/Lynx_Shunt_VE_Can_Manual-en.pdf
Victron Distributor Spec sheet: n/a
Victron Distributor Manual: https://www.victronenergy.com/upload/documents/Lynx_Distributor/Lynx_Distributor-en.pdf
Victron Smartsolar MPPT RS 450/200 Spec sheet: https://www.victronenergy.com/upload/documents/Datasheet-SmartSolar-MPPT-RS-EN-.pdf
Victron Smartsolar MPPT RS 450/200 Manual: https://www.victronenergy.com/upload/documents/SmartSolar_MPPT_RS/SmartSolar_MPPT_RS-en.pdf
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