Factory quality inspection of photovoltaic inverters

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Factory quality inspection of photovoltaic inverters

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FAQs 6

Why should you prevent quality issues in your inverters & power conversion systems?

Proactively catching and preventing quality issues in your inverters and power conversion systems optimizes the performance and extends the lifetime of your products. Preventing issues begins at the factory and production line.

Why do solar PV inverters fail?

That said, inverters are required to handle high, varying voltages, consistently face extreme temperature ranges and are exposed to environmental stress, for example in form of moisture and dust. Therefore, solar PV inverters and/ or its single components may fail for a range of reasons.

Why is quality control important in the manufacturing of PV modules?

Quality control plays a crucial role in the manufacturing of PV modules. The process is highly intricate and involves several components, such as silicon cells, glass, and wiring. While the production process involves collaboration with multiple suppliers and manufacturers, making quality control challenging.

What are inverter defects?

Functional and technical issues are a regular occurrence during the inverter production process. Some of these defects are merely cosmetic and may not affect the overall system performance, but other defects pose safety risks and can negatively impact the overall performance and life of the finished products.

What tests should an inverter undergo before shipping?

Among the many testing steps and procedures, there are four major tests that an inverter needs to undergo before being packed and shipped: The ingress protection (IP) rating of an inverter defines the ability of the inverter casing and seal to prevent moisture, dust ingress and foreign particles from entering and harming the electrical components.

Are inverters IP65 safe?

Most manufacturers claim to meet IP65 standards, which means that the inverter is dust tight and that water jets (as per standard: 12.5l/ minute for at least 3 minutes at a pressure of 30kPa and distance of 3 meters) against the enclosure have no harmful effects.

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