With the rapid development of the domestic new energy industry, the scale of photovoltaic installed capacity continues to expand. 1500V high-voltage systems and large-sized half modules have become the mainstream configurations for ground power stations and industrial and commercial distributed projects. In this context, the work pressure of power station completion acceptance, daily operation and maintenance, and third-party quality inspection continues to rise. Traditional IV detection equipment generally suffers from problems such as insufficient testing range, slow detection speed, and significant data drift in outdoor environments, making it difficult to adapt to the testing needs of current high-power components. This not only restricts the improvement of power plant operation and maintenance efficiency, but also poses a risk of data deviation for power plant power generation evaluation. In response to the pain points in this industry, Shanghai LAILX has launched the LX-PV31 portable IV tester based on years of technological accumulation. With its comprehensive performance of large range, high precision, fast detection, and strong portability, it provides reliable hardware support for quality control throughout the entire lifecycle of photovoltaics. Current voltage power curve detector

At the hardware performance level, LX-PV31 has completed a dual upgrade in range and accuracy. Its maximum test voltage is as high as 1500V, and the maximum test current can reach 30A, completely breaking through the performance bottleneck of traditional 1000V/20A equipment. This equipment can fully cover high-power components such as single crystal, polycrystalline, double glass, and half sheet, as well as high-voltage string testing scenarios. The device is equipped with a high-precision acquisition chip, with a voltage measurement accuracy of ± 0.1% FS and a current measurement accuracy of ± 0.2% FS. It can accurately capture subtle changes in the IV curve, quickly calculate core parameters such as open circuit voltage, short circuit current, peak power, fill factor, and conversion efficiency, and truly restore the actual power generation performance of the components, effectively avoiding misjudgment problems caused by insufficient equipment accuracy.

In terms of detection efficiency, LX-PV31 also performs excellently. The entire testing process is efficient and smooth, and a single test can complete the complete scan of the IV curve in just 10 seconds. At the same time, the equipment is equipped with a matching irradiation acquisition module, which can synchronously record on-site irradiance and temperature data, providing complete environmental parameters for power conversion, greatly reducing the operation time of large-scale power plant batch testing. In the aspect of outdoor operation adaptation, LX-PV31 takes full account of the complex working conditions on the photovoltaic site. The whole machine is packaged with an integrated high-strength protective box, which is earthquake resistant, fall resistant, dust-proof and waterproof, and can calmly cope with various harsh outdoor environments such as mountains, deserts and mudflat. The equipment is lightweight and can be transported, wired, and operated by a single person without the need for multiple workers to collaborate, significantly reducing on-site manpower investment.

In addition, LX-PV31 is equipped with a bilingual operation interface in Chinese and English, with simple and intuitive button logic, and on-site staff can operate it after simple training. After the test is completed, the device supports local storage of a large amount of detection data, which can be quickly exported through a USB flash drive, and is equipped with PC analysis software to automatically generate standardized detection reports, meeting the industry standard requirements for archiving power plant acceptance data and retaining operation and maintenance records. At present, LX-PV31 has been widely used in various scenarios such as centralized ground photovoltaic power stations, industrial and commercial distributed systems, household photovoltaic and module factory incoming material testing. It plays an important role in the grid connection acceptance of new projects, troubleshooting of existing power stations, component power review, and performance evaluation of aging components, effectively helping the photovoltaic industry's testing work move towards efficiency and standardization.

Current voltage power curve detector, portable IV tester, portable IV power tester for photovoltaic power plants