Solar irradiance is the core basic data for evaluating the power generation of photovoltaic power plants, analyzing system efficiency, and planning site selection. Accurate irradiance measurement data directly determines the rationality of photovoltaic project design and the accuracy of operation and maintenance. Jiangsu Jingwei Technology Co., Ltd. is deeply involved in the field of photovoltaic environmental monitoring and has launched the JW-F04 portable irradiance meter. With high-precision sensing technology, multi parameter synchronous measurement capability, and strong outdoor adaptability, it provides professional measurement solutions for photovoltaic power plant energy resource assessment and energy efficiency management, helping the photovoltaic industry achieve refined operation and efficient power generation. Portable irradiation system dosimeter The JW-F04 portable irradiance meter adopts a secondary standard spectral response sensor and multi-channel optical detection technology, and is a high-precision measurement device specially developed for photovoltaic system light energy evaluation. The device can synchronously measure the total solar radiation, scattered…
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As the core power generation unit of photovoltaic power plants, photovoltaic modules have hidden defects such as internal cracks, broken grids, and virtual welding that are difficult to identify with the naked eye. However, they can directly lead to a decrease in power generation efficiency and a shortened lifespan of the modules, seriously affecting the overall revenue of the power plant. Jiangsu Jingwei Technology Co., Ltd. focuses on the demand for non-destructive testing of internal defects in photovoltaic modules, and has ingeniously created the JW-EL5 portable EL detector. With high sensitivity imaging technology, lightweight and portable design, and intelligent recognition capabilities, it has become a "portable physical examination device" for photovoltaic modules, providing comprehensive protection for the core health of photovoltaic modules. Photovoltaic power station tester The JW-EL5 portable EL detector is developed based on advanced electroluminescence (EL) imaging technology. By applying a specific voltage to excite the internal electroluminescence…
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In the current rapid development of the global photovoltaic industry, precision and efficiency in power station operation and maintenance have become the core demands of the industry. Jiangsu Jingwei Technology Co., Ltd. is deeply involved in the field of photovoltaic testing and has launched the JW-IV13 portable IV tester. With lightweight design, high-precision testing capabilities, and intelligent analysis functions, it provides a one-stop solution for performance testing and fault diagnosis of photovoltaic modules and strings, helping photovoltaic power plants improve operation and maintenance efficiency and ensure power generation revenue. IV power detector As the core equipment for the operation and maintenance of photovoltaic power plants, the JW-IV13 portable IV tester focuses on the efficient detection needs on site. It adopts high-precision digital sampling technology and dynamic electronic load technology, which can quickly capture the complete IV characteristic curve of photovoltaic strings, accurately analyze key parameters such as short-circuit current, open…
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A large number of electrical equipment in photovoltaic power plants are exposed to outdoor environments for a long time. Facilities such as cables, combiner boxes, inverters, photovoltaic modules, etc. are affected by factors such as rainwater, moisture, sun exposure, aging, etc., and their insulation performance will gradually decrease. They are prone to safety hazards such as leakage and short circuits, which can cause equipment shutdown and damage to power generation, and even lead to safety accidents such as electric shock and fire. Insulation resistance testing is the core means of identifying electrical hazards and ensuring the safe operation of the system. Jiangsu Jingwei Technology has launched the JW-J25 insulation resistance tester to meet the testing needs of photovoltaic electrical systems. With advantages such as precise measurement, multiple safety protections, and portability, it has become a powerful tool for photovoltaic electrical safety testing, building a solid barrier for the safe operation…
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The solar irradiance is the core natural factor that determines the photovoltaic power generation. Accurately mastering the illumination data is an important prerequisite for the site selection planning, power generation calculation, component performance testing, and system fault analysis of photovoltaic power plants. With the continuous improvement of refined management in the photovoltaic industry, the demand for portable and high-precision irradiance monitoring equipment in the market continues to grow. Jiangsu Jingwei Technology, in response to industry development trends, has developed and launched the JW-F04 portable irradiance meter. With high-precision sensing technology, comprehensive data acquisition capabilities, and user-friendly design, it provides professional solutions for light monitoring in the photovoltaic field, empowering scientific operation and management of photovoltaic projects. Portable irradiation system dosimeter The JW-F04 portable irradiance meter is specially designed for the photovoltaic industry, with a high-performance secondary standard spectral sensor at its core. Combined with multi-channel optical detection technology, it can…
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Photovoltaic modules are the core components of photovoltaic power generation systems, and their quality directly determines the overall power generation and service life of the power station. During production, transportation, installation, and long-term operation, hidden defects such as hidden cracks, broken grids, virtual soldering, and fragments in battery cells are prone to occur. These problems cannot be recognized by the naked eye, but gradually lead to a decrease in success rate and even pose safety hazards. Electroluminescence detection is currently the most effective technical means for identifying internal defects in components. Jiangsu Jingwei Technology has combined industry pain points to launch the JW-EL2 portable EL detector, which relies on mature imaging technology and portable design to achieve visual detection of component defects and build a solid defense line for quality control throughout the entire lifecycle of photovoltaic modules. Photovoltaic power station tester EL detection captures the luminous state of battery…
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Against the backdrop of the continuous promotion of the dual carbon strategy, the scale of the domestic photovoltaic industry continues to expand, and various ground power stations and distributed photovoltaic projects are blooming everywhere. Power station operation and maintenance, performance testing, and fault diagnosis have become key links to ensure the profitability of photovoltaic power generation. As the core means of evaluating the operation status of photovoltaic modules and strings, IV characteristic testing can intuitively reflect the power generation performance of equipment. Jiangsu Jingwei Technology is based on the actual needs of the industry and strives to create the JW-IV12 portable IV tester. With leading technology, excellent practicality, and stable performance, it provides reliable assistance for photovoltaic full scene detection work and promotes photovoltaic operation and maintenance towards refinement and intelligence. Portable IV tester During long-term operation, photovoltaic modules are prone to problems such as power attenuation, hot spots, diode…
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Photovoltaic modules, DC cables, and combiner boxes are installed outdoors all year round. Rainwater infiltration, sand erosion, and cable outer skin wear can easily cause insulation layer damage, grounding leakage, and even frequent insulation alarms and power generation drops in inverters. In severe cases, it can lead to short circuit and fire safety accidents. Conventional megohmmeters cannot avoid the interference of self generated voltage of modules, and on-site measurement data during the day is distorted. The industry urgently needs specialized insulation testing equipment for photovoltaics. Jiangsu Jingwei has developed the JW-J25 portable insulation resistance tester, which is equipped with a self-developed photovoltaic anti-interference measurement module. It achieves precise insulation detection under voltage generation and has become an essential instrument for photovoltaic electrical safety inspection. Withstand Voltage Tester JW-J25 is designed to customize multiple voltage levels for photovoltaic DC systems, covering mainstream photovoltaic system voltage levels of 500V, 1000V, and 1500V.…
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Solar irradiance is the core environmental parameter that determines the instantaneous output power of photovoltaic modules. Deviation in irradiance data can directly cause distortion in IV power conversion, inaccurate calculation of power generation, and inaccurate evaluation of power plant efficiency. In the feasibility study site selection, on-site performance testing, and power generation traceability verification of photovoltaic projects, high-precision portable irradiance equipment is indispensable. Jiangsu Jingwei is deeply involved in the field of photovoltaic optical measurement and has launched the JW-F04 portable irradiance meter, which adopts secondary standard thermopile sensor technology to balance measurement accuracy and field portability. It has become a core measurement tool for photovoltaic resource survey, on-site detection, and energy efficiency analysis. Portable irradiation system dosimeter The JW-F04 core sensor uses thermopile detection elements calibrated by a third-party CNAS laboratory, with excellent cosine angle response characteristics, eliminating measurement errors caused by oblique sunlight and scattered light in the…
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During the entire process of production packaging, long-distance transportation, lifting and installation of photovoltaic modules, hidden defects such as hidden cracks, fragments, broken grids, virtual soldering, PID attenuation, etc. that are not visible to the naked eye are prone to occur. These defects may not have obvious appearance changes in the initial stage, but they will gradually increase power loss and shorten the service life of the modules, which is an important cause of the unjustified decline in power generation of photovoltaic power plants. Traditional large-scale fixed EL detection equipment is limited to indoor use in factories and cannot be used for on-site inspections on rooftops or mountain power stations. Jiangsu Jingwei has developed the JW-EL2 portable EL detector, which relies on high-definition infrared imaging and lightweight structural design to achieve non-destructive EL defect detection in all scenarios, breaking down the quality inspection barriers of the entire chain from component…
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With the continuous expansion of domestic photovoltaic power plant inventory, distributed photovoltaic, mountain photovoltaic, and industrial and commercial rooftop photovoltaic projects are landing everywhere. Issues such as component power attenuation, string mismatch, and diode failure have gradually become key pain points restricting the increase in power generation of power plants. Traditional laboratory fixed IV testing equipment is cumbersome to transport and cannot be deployed in the field. The industry urgently needs lightweight, high-precision portable testing equipment. Jiangsu Jingwei Technology, based on years of technical accumulation in the field of photovoltaic testing, has launched the JW-IV11 portable IV tester. Relying on self-developed dynamic electronic load and intelligent algorithm technology, it fills the gap in photovoltaic on-site power detection and becomes a standard testing equipment for third-party testing institutions, power station operation and maintenance enterprises, and component manufacturers. IV power detector The core advantages of JW-IV11 are concentrated in two dimensions: measurement…
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The efficiency of photovoltaic power generation is highly dependent on environmental meteorological conditions. Parameters such as wind speed, temperature and humidity, solar radiation, precipitation, etc. directly affect power prediction, operation and maintenance strategies, and power generation accounting. Traditional simple meteorological stations have incomplete parameters and low accuracy, which cannot meet the IEC61724 grid connected data reporting standards. Jiangsu Jingwei has launched the JW-Q56 photovoltaic integrated meteorological station, which combines the photovoltaic climate characteristics of different regions in China. It integrates more than ten photovoltaic monitoring sensors to achieve 24/7 automated monitoring of the power plant environment, becoming a standard infrastructure for smart photovoltaic power plants. Portable weather station JW-Q56 integrates core sensing modules according to the monitoring standards for photovoltaic power plants, which can monitor eight basic parameters in real time: environmental temperature, environmental humidity, atmospheric pressure, wind speed and direction, cumulative rainfall, total radiation on the horizontal plane, total…
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