VI (Voltage-Current) curve testing is an essential process for evaluating the performance and health of electrical equipment, including solar panels, batteries, and power electronics. It involves measuring the voltage and current flowing through a device under test (DUT) at different points on its operating curve, and then plotting these measurements on a graph to create a VI curve. This curve provides valuable information about the DUT's operating characteristics and can be used to diagnose problems and optimize performance.
In this article, we'll discuss the different VI curve testing techniques and their applications.
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