At present, as the photovoltaic industry moves towards refined operation and maintenance, rapid and accurate evaluation of component and string power generation performance is the core link to ensure efficient operation of power plants and improve investment returns. Jiangsu Jingwei Technology Co., Ltd. is deeply engaged in the field of photovoltaic testing. With profound technical accumulation and industry insights, we have launched the JW-IV12 portable IV tester, which reshapes the on-site testing standards for photovoltaics with lightweight design, laboratory level accuracy, and intelligent operation, providing hardcore support for the full life cycle operation and maintenance of photovoltaic power plants. Outdoor IV tester
As a new generation of high-precision diagnostic equipment specially designed for efficient operation and maintenance of photovoltaic power plants, the JW-IV12 portable IV tester focuses on the three core requirements of "portability, precision, and efficiency", breaking the limitations of traditional IV testing equipment such as large size, complex operation, and dependence on fixed scenarios. It concentrates precision detection capabilities in a compact body, truly achieving "portable and anywhere detection". The entire equipment is made of high-strength industrial grade materials, balancing durability and lightweight. The portable box design is suitable for complex outdoor environments, and can be easily carried by a single person to various photovoltaic power plant scenarios such as roofs, mountains, and water surfaces, completely solving the transportation and deployment problems of large equipment and significantly reducing the threshold for on-site testing.
In terms of core performance, JW-IV12 is equipped with high-frequency sampling technology and adaptive electronic load, with a voltage measurement range covering 10V~1500V and a current measurement range of 0.01A~30A. It accurately matches more than 95% of current photovoltaic modules and string specifications, with a measurement accuracy of up to ± 0.5% ± 0.2V. It can quickly capture the complete current voltage (IV) characteristic curve and synchronously analyze key performance parameters such as open circuit voltage, short-circuit current, maximum power point, and fill factor. The data accuracy is comparable to that of large laboratory equipment. In response to the changing outdoor lighting and temperature conditions, the equipment is equipped with an intelligent STC standard condition correction algorithm, which can automatically compensate for environmental interference, accurately convert on-site measured data into parameters under standard testing conditions, ensure comparability of test results in different scenarios and time periods, and provide reliable basis for performance evaluation.
Intelligent design is one of the core highlights of JW-IV12. The device is equipped with a high brightness outdoor touch screen, which is clearly visible under strong light, and is paired with a user-friendly Chinese operation interface to simplify the operation process. Novices can quickly get started and complete the detection. Built in AI assisted diagnostic system, capable of multi-dimensional feature analysis of IV curve morphology, automatically identifying six common problems including power attenuation, hot spot effect, occlusion loss, series mismatch, bypass diode fault, and abnormal line connection. Without the need for manual in-depth analysis, structured diagnostic reports can be generated to clarify the fault location and cause, greatly improving the efficiency of fault localization. Simultaneously supporting local data storage, one click export, and cloud synchronization, it can be integrated with photovoltaic operation and maintenance platforms to achieve digital management of detection data, historical data traceability, and remote collaboration, helping to upgrade the operation and maintenance mode from "passive repair" to "active prediction".
In practical applications, the JW-IV12 portable IV tester covers the core scenarios of the entire photovoltaic industry chain: during the construction and acceptance stage of power stations, it can quickly complete component and string performance sampling, identify factory defects and installation damage, and ensure the quality of power station grid connection; During the daily operation and maintenance inspection phase, a single person can complete the entire station's string rotation inspection, accurately locate inefficient strings, and promptly eliminate performance hazards; In the troubleshooting stage, for problems such as sudden drops in power generation and equipment alarms, quickly identify the type and scope of the fault, shorten downtime, and reduce economic losses; The second-hand component trading and quality evaluation process can quickly verify the actual performance of the components, eliminate the practice of passing off inferior components as good, and protect the rights and interests of both parties in the transaction. With excellent environmental adaptability, the equipment can operate stably in a wide temperature range of -20 ℃~60 ℃. It is designed to be dustproof, moisture-proof, and shockproof, and is suitable for harsh working conditions such as mountains, deserts, and coastal areas. It ensures that testing work is carried out in an orderly manner 24/7.
Jiangsu Jingwei Technology Co., Ltd. has always taken "technological innovation empowers efficient operation and maintenance of photovoltaics" as its mission, relying on its core advantages in online energy metering and emerging energy technology research and development, to build a complete system of water droplet credit from detection equipment to operation and maintenance solutions. The launch of JW-IV12 portable IV tester is another heavyweight achievement of the company's deep cultivation in the field of photovoltaic testing. It not only fills the market gap of high-end portable IV testing equipment, but also provides key support for the refinement and digital transformation of the photovoltaic industry.
In the future, Jiangsu Jingwei will continue to focus on the pain points of photovoltaic operation and maintenance, increase research and development investment, continuously optimize product performance, launch more testing equipment and solutions that meet market demand, help the photovoltaic industry reduce costs, increase efficiency, and promote high-quality development, and contribute Chinese strength to the global clean energy industry.
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