Hi Gents ..
Lurking for some time now and I've finally got the balls to start my diy project ..
I've got a sunsynk 5kw inverter and a sunsynk 5kw battery with it . I am NOT using solar at this stage and purely want to use my inverter as a ups during load shedding to power some essential circuits ie. Lights and plugs . I'm planning on installing tomorrow but need some last minute clarifications and I believe you lot of knowledgeable folks are my best bet
1. Do I need to use the temp sensor when using a Li-ion battery ?
2. The dreaded neutral earth bond that seems to be confusing a lot of people(including me). Do I need to hook up this relay if using inverter as a ups and also do I need a dedicated earth spike to feed neutral to earth via the relay or can I take earth from my grid supplied earth ?
3. Does the grid supply to inverter get taken before or after main db earth leakage?
4. CT coil needed when using as ups ?
5. Ac surge protection to inverter.. does this get connected on the grid side input to inverter ?
6. For a 5kw system is a 25a double pole isolator sufficient to feed the inverter "grid" supply ?
7. The PE marking on the inverter "grid" and "load" connections .do these just go to my normal grid supplied earth ?
Apologies in advance for all the noobish questions.. I'm an auto electrician by trade and the transition from DC work all day everyday to doing AC work is a bit confusing..lol
I'll appreciate any extra advice
Thanks in advance ☺️