Photovoltaic inverter protection measures

A good performance of photovoltaic inverter, also should have perfect protection function or measures, to deal with in the process of actual use of all kinds of abnormal situation, make the photovoltaic inverter system itself and other components from damage. ( 1) For input under voltage protection: when the input voltage of less than 85% of the rated voltage, inverter should protect and display. ( 2) Input for over voltage protection: when the input voltage is higher than 130% of the rated voltage, inverter should protect and display. ( 3) Overcurrent protection, overcurrent protection of photovoltaic inverter, should be able to ensure that the load short-circuit or current exceeds allowable values timely action, make it from the damage of the surge current. When work by more than 150% of the rated current, inverter should be able to automatic protection. ( 4) The action time of the inverter short-circuit protection for the output short circuit protection should be less than 0. 5s。 ( 5) Input reverse connect protection: when the input correct, negative against, inverter should have protective function and display. ( 6) Lightning protection: inverter should have lightning protection. ( 7) Over temperature protection, etc. In addition, to no voltage stability measures of photovoltaic inverter, inverter shall also have the output overvoltage protection measures, so that the load from the damage of overvoltage. Keywords: photovoltaic inverter more articles about inverter show: general how long is the life of a photovoltaic inverter?
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