Muhammad Ahmed

I am going to install my first Ongrid solar system that will export electricity to the national grid as well. I have following 3 x questions 1. Can I connect negative terminal of my PV array with earth/ground system? 2. Can I connect the lightning arrestor with DC earth/ground system? 3. Can I connect the neutral of inverter with the AC earth/ground system. Note: as per the utility company requirements there needs to be two seperate earth/ground electrodes buried in the ground (1 for each DC side and AC side of PV system) for protection of system from surges and fault currents.

Dear experts, i want to install a 5 kVA ongrid inverter in a factory for lights that runs 24/7 but i donot want to export electricity to the grid . Topology that i wish to use is shown as a hand made diagram that you can find in attachment with this message. Currently the lights are running on utility supply which is coming from Distribution Board (DB). Before DB there is Sub Main Panel Boards, Main Panel Boards, ATS panels and tranformer of factory and all other load is running on the system. After the installation of solar system, solar inverter will share its output on the common bus bar of lights distribution board as shown in the diagram. Blended power from solar and utility will be used to run the load. i would like to ask if ordinary On-grid inverters like inverters of Voltronics, Solis, Chint, SAJ power, etc are Ok to use or is there some special inverter that has to be used ? I have read termnology somewhere "REVERSE FEED STOP". Is this some kind of device or it is type of inverter used to prevent supplying back to the grid ? Need your guidance as i am worried and dont want to land in a difficult situation. TIA M.Ahmed

I am from Pakistan, I would like to ask the experts who are well aware of voltronics power products in Pakistan, that which model of Voltronics hybrid inverters are capable of blending Solar supply with Utility supply. I wish to install a 5 KVA hybrid voltronics inverter at my home. By blending, I mean a functionality in inverter that enables inverter to take what ever input coming from solar system, synchronize this solar input with utility supply and feed the connected load, when the load KW are more that solar plant production at any given time? I hope my question is clear, TIA.