1. First of all, the voltage of the grid-connected inverter is always higher than the grid voltage, so the load gives priority to photovoltaic power generation.
2. Second, when configuring the system capacity, try to make it less than the total system load power.
3. Finally, solar power generation can only be used first when the photovoltaic power is lower than the load power.
Does the connection to the low-voltage solar photovoltaic network need to be repaired?
1. Contact the business hall of the Electric Power Bureau and fill out the grid connection application form (households need to bring the identity card and registration book of the head of the family when applying) , real estate certificate and other relevant documents
2. network connection plan within 10 working days.
3. The household will confirm the network connection plan
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5. Purchase the equipment in accordance with the relevant technical requirements
6. The household submits a grid connection debugging request and the electricity supply company installs the meters, arranges acceptance and signs the relevant agreements
7. After testing, the grid connection is officially completed
It should be noted that: It is free to apply for grid-connected home photovoltaic power plants. For projects connected to the network with. 380 volts and below, the power supply department promises to complete the grid connection process of power grid companies within 35 working days, and 10kV grid connected projects within 45 working days .
However, this year's regulations. require the power plant construction unit to have professional qualificationse connection to the network. If it does not have network connection qualifications, it cannot be connected to the network.
A connection to the low voltage photovoltaic solar network is required. The voltage loss trip setting value is set to 20%Un, 10 s. The voltage detection setting value is set above 85%Un. For low voltage access, use the low voltage photovoltaic network connected switch + communication solution. acquisition + electric meter. Among them, the DARI-3201 grid-connected low-voltage dedicated photovoltaic switch has voltage loss triggering (the setting value of voltage loss triggering is set to 20% Un, 10s) and function voltage detection close (the voltage detection value is set above 85% Un). After setting the setting value, it can be assured that the low voltage access has professional functionsInstantaneous short circuit and long delay protection, as well as shunt tripping and low voltage lockout. and closing functions. Low voltage access uses a low voltage solar PV grid connection solution, so the low voltage solar PV is combined.