With the rapid development of the domestic new energy industry and the continuous expansion of photovoltaic installed capacity, 1500V high-voltage systems and large-sized half modules have become the mainstream configurations for ground power stations and distributed industrial and commercial projects. 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, restricting the improvement of power plant operation and maintenance efficiency, and also bringing data deviation risks to power plant power generation evaluation. Based on years of technical accumulation in the field of photovoltaic testing, Suzhou LAILX has launched the LX-PV31 portable IV tester to address industry pain points. 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 and has become the main testing equipment for EPC general contracting enterprises, third-party testing institutions, and large-scale operation and maintenance enterprises. IV power detector

The LX-PV31 portable IV tester has achieved dual upgrades in range and accuracy at the hardware level, with a maximum test voltage of 1500V and a maximum test current of 30A, completely breaking through the performance bottleneck of traditional 1000V/20A devices. It fully covers high-power components such as single crystal, polycrystalline, double glass, and half chip, as well as high-voltage string testing scenarios. Whether it is single component power rating or on-site performance investigation of the entire string, it can stably complete the testing work. 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. The entire testing process is highly efficient, with a single test group completing a complete scan of the IV curve in 10 seconds. Paired with a matching irradiation acquisition module, it synchronously records on-site irradiance and temperature data, providing complete environmental parameters for power conversion and significantly 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 encapsulated in an integrated high-strength protective box, which is earthquake resistant, fall resistant, dust-proof and waterproof, and can adapt to various harsh outdoor environments such as mountains, deserts, mudflat, etc. The whole machine is light in weight. One person can complete the handling, wiring, and whole set of operations without the need for multiple staff to work together, reducing the on-site manpower input. The device is equipped with a bilingual operation interface in Chinese and English, with simple and intuitive button logic. The on-site staff can easily operate it after simple training. After testing, it supports local storage of a large amount of detection data, which can be quickly exported through a USB flash drive. It is matched with PC analysis software to automatically generate standardized detection reports, and the detection data is fully retained, meeting the industry standard requirements of power plant acceptance data archiving and operation and maintenance ledger retention. The device is equipped with an intelligent load unit, which ensures a stable and continuous scanning process without any curve interruption or distortion. It can maintain measurement stability even in the face of on-site electromagnetic interference and drastic temperature changes, reducing the workload of repeated on-site measurements.

From the perspective of practical application, the LX-PV31 portable IV tester has been widely used in various scenarios such as centralized ground photovoltaic power stations, industrial and commercial distributed systems, household photovoltaics, 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. Many third-party testing agencies use this equipment as a standard configuration for on-site inspections of projects. With the help of the equipment, operation and maintenance companies can quickly locate inefficient clusters, identify the root cause of power generation attenuation, and carry out targeted rectification and maintenance to effectively recover the loss of power generation revenue of the power station. LAILX in Suzhou insists on driving product iteration with scenario requirements. LX-PV31 is not just a hardware testing instrument, but also comes with comprehensive technical training, instrument calibration, and after-sales technical support services to solve various problems encountered by customers during instrument use. Against the backdrop of the photovoltaic industry's continuous progress towards high voltage and high power, the LX-PV31 portable IV tester, with its solid comprehensive performance, continues to help the photovoltaic industry's testing work move towards efficiency and standardization, safeguarding the investment returns and long-term stable operation of photovoltaic power plants.

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