el portable tester to detect defects and reduce losses

EL inspection is very important for incoming PV modules, which has two main purposes: firstly, to ensure that the modules are of high quality when they leave the factory, and secondly, to check whether there is any damage to the modules during transport. Through EL inspection, if defects are found in the modules, you can communicate with the manufacturer and deal with the problem in time. This can avoid the situation that the responsibility is not clear and difficult to be divided when quality problems occur in the operation of the power station in the future.

el portable tester, this portable testing instrument is designed to be very lightweight and easy to install. It can be used in a variety of complex field environments, and can quickly diagnose electroluminescence (EL) defects in photovoltaic modules. The EL inspection can be performed directly on the PV string or individual module mounted on the system without removing the module down, which is both convenient and efficient.

It is based on the principle of electroluminescence, which is performed by applying voltage to the panel to make it glow. If some parts of the panel glow weaker, it means there may be a problem there.

Internal defects have a significant impact on the performance and lifespan of solar panels, which not only reduces their long-term power generation efficiency, but also may cause fire and other safety accidents, resulting in economic losses for owners. Portable EL testers are capable of detecting a wide range of defects in PV modules, including problems such as hidden cracks, fragments, false welds, black flakes, broken grids and mixed files. This tester is portable, easy to operate, and able to perform tests under a variety of complex field conditions, providing important technical support for the supervision of power projects. By using a portable EL tester, defects in PV modules can be detected and resolved in a timely manner, safeguarding the safety and efficiency of the PV system and reducing potential economic losses.