Has an extremely extensive application prospect in the solar photovoltaic power generation is a kind of power generation technology, which has the characteristics of safe, reliable, clean, etc, with the progress of technology, the improvement of science and technology, solar photovoltaic power generation technology had great progress, especially in recent years as the country increased the investment in solar photovoltaic power generation, solar photovoltaic power generation in China presents the outbreak Long posture. The following is the installation regulations of solar inverter. Let's have a look.
▲ Solar cell array installation should comply with the following provisions:
1. The size, specification and quantity of solar cell square bracket shall meet the engineering design requirements, and the metal materials used shall be treated with anti-corrosion; the model, specification and quantity of solar cells shall meet the engineering design requirements, and there shall be a certificate of quality;
2. The solar cell plate shall not be damaged, cracked or open circuit of the positive and negative electrode inside;
the solar cell square bracket base should be straight and firm, and the direction, size and strength should meet the requirements of engineering design.
▲ Solar cell shockproof bracket should be installed grounding and lightning protection device.
▲ The power cable connection mode between the solar cell arrays shall meet the engineering design requirements. The cables entering the room must be shielded solar cable dc that are neatly laid and in a reasonable direction. The shielding layer at the entrance of the equipment room must be grounded nearby. The core cables must be equipped with lightning arresters of corresponding voltage levels. The inlet hole should be treated with anti-seepage water.
▲ Under normal meteorological conditions, checking the open circuit voltage and short circuit flow of solar cells should meet the engineering design requirements.
▲ Solar cell controller inspection should comply with the following provisions:
1 The solar cell should be able to access the battery bank, and should automatically charge the battery bank, charging;
2 When the solar cell energy is insufficient, the battery bank should be automatically connected to power the load;
3 When the solar cell and battery energy is insufficient, warning signal should be issued, and other power supply methods should be started;
4 Under the rated current condition, the DC supply circuit voltage drop shall not be greater than 0.5 V
▲ System monitor inspection should comply with the following provisions:
1 When the bus voltage is lower than or higher than the threshold voltage, the solar array should automatically join or remove the solar cell array one by one;
2 The DC power distribution unit should automatically access or partially remove the solar cell array according to the solar cell energy.
▲ Local and remote monitoring interface performance should be normal.