Hi
Thanks in advance
have single phase grid supply
I have a Carlo Gavazz 112 single phase meter used as Grid Meter installed before AC1IN of Multiuplus 2
Set to no grid feedback
However I have many non critical loads that are connected after grid in meter that are not being fed by excess PV power because I have set 112 to 0watts ie no feedback back along AC! IN .
So I need to install a Carlo Gavazz just after meter. I dont want feedback past that new Carlo Gavazz which I will also set as grid meter @ 0W .
Ill change the 112 which Ill leave installed before the AC1IN froim GRID METER to AC LOAD measure .
Now for the questions
1.Can I use a Carlo Gavazz ET340 as a single phase Grid meter so that if and when I upgrade to 3 Phase GRID SUPPLY in the future ill not have wasted the purchase of another 112 and can simply change the Carlo Gavazz ET340 - used in single phase to being used in 3 phase ?
2. Upgrading to 3 phase will also enable maximum grid future feedback if rates become more attractive - is this assumption correct ie use 3 phase to allow maximum power feedback?
This will now allow me to perform feedback to local main board ( and power all those loads via reverse AC1 IN ) which are currently unaccounted for from excess PV Power but stop feedback at the Carlo Gavazz ET340 ie no GRID feedback ?
3. Would this ( Carlo Gavazz ET340 ) be adequate or will I need to install a Schneider and contacter backup power blocker as per NRS 097-2-2:2017 as set out in the attached pdf. I ask becauee when I try and but the Schneider and Contactor the local wholesaler says they dont sell them. Sop it seesm like the Carlo Gavazz ET340 and grid code for Mukltiplus which is on cetified list is good enough
