Hello,
I have a 3 phase grid supply and a neutral (4 wires coming from the transformer). Phase to Neutral is 220VAC/50 Hz.
I have s single phase Hybrid inverter type Noor Power Plus Model 2SSP3119C 5KVA with two wires for AC input and two wires for AC output. Of course it also has an input for solar panels and also for a battery bank.
I am using a knife switch to select manually between the grid (three phases and neutral) on one side and the only one phase and neutral coming from the inverter on the other side (looped to supply the three phases of the house when grid id not available). Each side has its own neutral wire. I am using a 2x3 phase RCD to supply the 2 floors in my house. The switching is done manually by operating the knife switch to either inverter input or grid.
I want to automate this operation. I have dedicated two phases for the heavy loads (4 A/Cs on each phase). These should work only when there is grid available. The third phase is the same phase supplying the inverter with its AC input. This phase I want to use for the other loads i.e. lights, fridges, washing machines, receptacles, water pumps etc...
I intend to connect the phase of the inverter AC output at the knife switch in place of one of the grid three phases (the same used to supply AC input to the inverter). I have to connect the neutral of the inverter AC output to the grid neutral at the knife switch. I am scared to death to do that. Can anyone with better experience help? the instruction manual is very poor and does not tell you anything in this regard.
appreciate your help.
I have a 3 phase grid supply and a neutral (4 wires coming from the transformer). Phase to Neutral is 220VAC/50 Hz.
I have s single phase Hybrid inverter type Noor Power Plus Model 2SSP3119C 5KVA with two wires for AC input and two wires for AC output. Of course it also has an input for solar panels and also for a battery bank.
I am using a knife switch to select manually between the grid (three phases and neutral) on one side and the only one phase and neutral coming from the inverter on the other side (looped to supply the three phases of the house when grid id not available). Each side has its own neutral wire. I am using a 2x3 phase RCD to supply the 2 floors in my house. The switching is done manually by operating the knife switch to either inverter input or grid.
I want to automate this operation. I have dedicated two phases for the heavy loads (4 A/Cs on each phase). These should work only when there is grid available. The third phase is the same phase supplying the inverter with its AC input. This phase I want to use for the other loads i.e. lights, fridges, washing machines, receptacles, water pumps etc...
I intend to connect the phase of the inverter AC output at the knife switch in place of one of the grid three phases (the same used to supply AC input to the inverter). I have to connect the neutral of the inverter AC output to the grid neutral at the knife switch. I am scared to death to do that. Can anyone with better experience help? the instruction manual is very poor and does not tell you anything in this regard.
appreciate your help.