In the current context of the deepening of the "dual carbon" strategy and the large-scale development of photovoltaic power plants, issues such as component power attenuation, line faults, and mismatch losses directly constrain the power generation efficiency and investment returns of power plants. Traditional IV testing equipment is bulky, complex to operate, and has poor outdoor adaptability, making it difficult to meet the efficient operation and maintenance needs of multiple scenarios such as distributed power stations and mountain power stations. Jiangsu Jingwei Technology Co., Ltd. is deeply engaged in the field of photovoltaic testing, relying on self-developed core technology to launch the JW-IV11 portable IV tester. With high precision, strong portability, and intelligence advantages, it provides an integrated solution for photovoltaic system performance evaluation and fault diagnosis, becoming a benchmark product in the field of photovoltaic operation and maintenance. IV power detector Jiangsu Jingwei, as a high-tech enterprise specializing in…
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With the development of photovoltaic power plants towards large-scale, mountainous, and desertification, traditional manual EL detection faces pain points such as low efficiency, high cost, high risk of high-altitude and high-risk operations, and difficulty in reaching some areas, making it difficult to meet the efficient operation and maintenance needs of large-scale power plants. Jiangsu Jingwei Technology Co., Ltd. closely follows the trend of intelligent development in the industry, integrates unmanned aerial vehicle flight technology and high-precision EL detection technology, and launches the JW-WE2 unmanned aerial vehicle EL detector. This device innovates the air inspection mode to achieve efficient, accurate, and safe detection of EL defects in photovoltaic modules, completely solving traditional detection problems and providing revolutionary solutions for the operation and maintenance of large-scale photovoltaic power plants, leading the intelligent innovation of photovoltaic operation and maintenance. EL internal defect quality inspection The JW-WE2 drone EL detector is a deep integration…
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Photovoltaic power plants are exposed to complex outdoor environments for a long time, and the insulation layers of components, cables, inverters, and other equipment are prone to insulation resistance reduction due to aging, moisture, corrosion, physical damage, etc., which can lead to leakage, short circuits, equipment burnout, and even safety accidents such as fires and personnel electric shocks, seriously threatening the safe and stable operation of the power plant. Jiangsu Jingwei Technology Co., Ltd. focuses on the core requirements of electrical safety testing for photovoltaic systems and innovatively develops the JW-J25 insulation resistance tester. The device is centered around high-precision measurement, multiple safety protections, and portable intelligent design. It accurately detects the insulation resistance of photovoltaic equipment, comprehensively evaluates the electrical safety status, and provides reliable technical support for the installation acceptance, regular maintenance, and safety audit of photovoltaic power plants, building a solid defense line for the electrical safety…
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The solar irradiance is the core influencing factor of the power generation of photovoltaic power plants. Accurate measurement of irradiance data is crucial for the efficiency evaluation, power generation prediction, system optimization, and operation and maintenance management of photovoltaic power plants. Jiangsu Jingwei Technology Co., Ltd. combines the light energy monitoring needs of the photovoltaic industry and relies on advanced optical sensing technology to create the JW-F04 portable irradiance meter with ingenuity. The device is designed with high precision measurement, strong environmental adaptability, and portability as its core. It can accurately capture dynamic data of solar radiation and provide a reliable solution for the full life cycle light energy monitoring of photovoltaic power plants. It helps photovoltaic power plants improve power generation prediction accuracy, optimize system efficiency, and maximize power generation revenue. Portable irradiation system dosimeter The JW-F04 portable irradiance meter adopts industry-leading optical sensing technology, with measurement accuracy and…
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As the core power generation unit of a power station, photovoltaic modules have microscopic defects such as hidden cracks, broken grids, virtual soldering, and PID effects that are difficult to detect with the naked eye. However, they can directly lead to a decrease in power generation efficiency, a shortened service life, and even pose safety hazards. Jiangsu Jingwei Technology Co., Ltd. focuses on the pain points of internal defect detection in photovoltaic modules and innovatively develops the JW-EL3 portable EL detector. Relying on advanced electroluminescence (EL) technology, it achieves micrometer level precision detection of micro defects in photovoltaic modules. With portable and intelligent design, it provides efficient non-destructive testing solutions for the quality control of photovoltaic modules throughout their lifecycle, becoming a "micrometer level sentinel" in the field of photovoltaic quality inspection. Solar cell testing equipment The JW-EL3 portable EL detector is based on the mature principle of electroluminescence, and…
READ MOREIn the current era of rapid development in the photovoltaic industry, the refinement and efficiency of power plant operation and maintenance have become the core key to enhancing power generation efficiency. Jiangsu Jingwei Technology Co., Ltd., with its deep expertise in photovoltaic testing, leverages its strong technical accumulation and practical industry experience to launch the JW-IV13 portable IV tester. This device integrates high-precision measurement, lightweight design, and intelligent analysis, specifically tailored for photovoltaic string IV characteristic testing. It provides professional and reliable solutions for the construction acceptance, regular inspection, and fault diagnosis of photovoltaic power plants, thereby facilitating the upgrade of operation and maintenance quality and efficiency enhancement in the photovoltaic industry. As a new generation of high-precision on-site diagnostic equipment, the JW-IV13 portable IV tester boasts significant core technological advantages, leading the industry in precision and stability. The device employs advanced electronic load and high-speed data acquisition technology, equipped…
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On the evening of August 19, the official Weibo of "Industry and Information Technology Weibao" broke news that the Ministry of Industry and Information Technology, the Ministry of Social Work of the Central Committee, the National Development and Reform Commission, the State-owned Assets Supervision and Administration Commission of the State Council, the State Administration for Market Regulation, and the National Energy Administration jointly held a symposium on the photovoltaic industry on the same day to further standardize the competition order of the photovoltaic industry. According to the official statement of the official Weibo of "Industry and Information Technology Weibo" on the evening of the 19th, the heads of relevant photovoltaic manufacturing enterprises and power generation enterprises, the China Photovoltaic Industry Association, and relevant local industry and information technology departments attended the meeting. Different from the caliber of the "Industry and Information Technology WeChat" symposium on July 3, the official release…
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1. Core equipment testing is the foundation, photovoltaic modules need to be visually inspected for cracks, hidden cracks (EL test), occlusion and hot spots (infrared thermal imager), and open circuit voltage and power attenuation are measured; The inverter monitors input and output parameters, temperature and fault alarms, and tests the conversion efficiency and harmonics. The combiner box checks the overheating of the fuse and wiring, and tests the lightning protection module. 2. Electrical system testing covers distribution cabinet wiring, three-phase balance, cable insulation resistance and laying conditions; The grounding system measures the grounding resistance (≤4Ω) and checks the connection reliability. Lightning protection facilities test the operation performance of lightning rods, down conductors and lightning protectors. 3. Performance and environmental monitoring The power generation is counted through the SCADA system, and the loss is analyzed compared with the theoretical value. Monitor irradiance, ambient and component temperature, and wind speed to optimize…
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Treasures of the photovoltaic industry, today we must give you a super powerful portable IV curve tester developed by Shandong Baifeng Technology Whether it is photovoltaic power station inspection or photovoltaic module production inspection, it can show its skills! Lightweight and portable, it can measure wherever it goes This tester is lightweight in design and compact and lightweight. Imagine carrying it on your back in a large array of photovoltaic modules, without feeling strenuous, and easily reaching various inspection points ✅ Whether it is a large-scale ground-based photovoltaic power station or the roof of a distributed photovoltaic system, you can carry out testing work anytime and anywhere, and the efficiency is directly full! Easy to operate, one-click start, super worry-free The operation interface is simple and intuitive, even if you are a novice in photovoltaic testing, you can understand it in seconds at a glance. The one-click fast test function…
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Items during on-site inspection of photovoltaic power station operation and maintenance and technicians include: infrared camera (hot spot inspection), stain occlusion loss, photovoltaic module performance degradation, photovoltaic cluster string temperature rise loss, photovoltaic module/string series and parallel mismatch loss, EL test, photovoltaic array mutual occlusion loss, DC line loss, inverter efficiency, inverter MPPT efficiency, transformer efficiency, AC line loss, photovoltaic array insulation test, grounding continuity test, grid connection performance test (grid connection point power quality, island protection, active/ reactive power control ability, low voltage ride-through and voltage/frequency adaptability verification) and other test contents. In the test project of the photovoltaic power station using string inverters, it should be determined according to the actual situation.1. Infrared (IR) scanning inspection of photovoltaic modules (full inspection using drones)(1) When the photovoltaic operation and maintenance personnel scan the photovoltaic modules by infrared scanning, the photovoltaic array should be in normal working condition during detection,…
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Photovoltaic roof inspection is an important part of ensuring the safe operation of photovoltaic systems, and its main purpose is to evaluate whether the roof structure can withstand the weight and load of the photovoltaic system, and to check the installation quality and electrical safety of the photovoltaic system. Here are the general steps for photovoltaic roof inspection: Roof structure inspection: First, conduct a comprehensive inspection of the roof structure to ensure that it can withstand the weight of the photovoltaic modules and maintain good integrity. This includes checking the roof's material, structure type, load-bearing capacity, etc. At the same time, special attention should be paid to the waterproof, thermal insulation and other properties of the roof to ensure that it can still maintain good functionality after carrying the photovoltaic system. Photovoltaic module installation inspection: Check the installation of photovoltaic modules, including module positioning, angle, bracket firmness, etc. Ensure that…
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Photovoltaic power stations, also known as solar photovoltaic power stations, refer to photovoltaic power generation systems that are connected to the grid and transmit electricity to the grid. Photovoltaic power plants have become an important source of electricity supply worldwide, and regular testing cannot be ignored to ensure their efficient and safe operation. Photovoltaic power station testing project content The testing content of photovoltaic power plants involves multiple aspects, which need to be evaluated and tested through professional testing equipment and testing technology to ensure the normal operation and safety of the power station. The main items of photovoltaic power station testing and acceptance are as follows: 1. Document verification: basic information of the project; basic documents; contract compliance of power station equipment; 2. Construction quality verification: verification of actual installed capacity; photovoltaic module inspection; Combiner box inspection; AC and DC distribution cabinets, box transformer inspection; photovoltaic bracket/photovoltaic array field/inverter…
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