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Analysis of Common Faults of Photovoltaic Module Junction Box
Release time:
2023/05/29
Photovoltaic module junction box is an important part of photovoltaic module, is a set of circuit design, materials applied in one of the electrical components, located on the back of the photovoltaic module.
The junction box has two functions of connection and protection. The connection function is to draw out and import the current generated by the photovoltaic module into the electrical equipment through the cable and connector. In order to reduce the junction box's own loss, the conductive material's own resistance and contact resistance are required to be as small as possible.
The protection function includes two parts, one is to protect the PV module through the bypass diode and improve the power output of the PV module under the fault condition such as shielding; The second is to achieve the purpose of waterproof and fireproof and reduce the working temperature of the junction box through special material sealing and heat dissipation design, so as to protect the photovoltaic module and reduce the loss of the output power of the photovoltaic module due to the leakage current of the bypass diode.
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