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 of power plants. Leakage current test
The insulation resistance value is the core indicator for evaluating the insulation status of electrical equipment. The JW-J25 insulation resistance tester is specially designed for photovoltaic systems, using high-precision measurement circuits and high-voltage testing technology. The measurement range covers the full voltage level of the photovoltaic system, and can carry out insulation testing on various electrical facilities such as photovoltaic modules, AC/DC cables, combiner equipment, inverter devices, etc., accurately capturing potential problems such as insulation aging, line damage, moisture leakage, etc. The equipment measurement data is stable and has small errors, which can intuitively reflect the insulation performance of the equipment, helping operation and maintenance personnel to detect hidden dangers in advance, carry out maintenance and repair in a timely manner, and avoid electrical safety accidents from the source. At the same time, the equipment supports polarization index testing, which can deeply analyze the aging degree of insulation materials, provide scientific reference for electrical equipment maintenance and replacement, and extend the service life of electrical equipment.
Safety is the first criterion for electrical testing equipment, and JW-J25 builds a comprehensive safety protection system from multiple dimensions such as circuit design and functional configuration. The equipment integrates multiple protection functions such as high-voltage short circuit protection, overcurrent protection, reverse connection protection, and leakage protection. In case of operational errors, line short circuits, residual voltage surges, and other unexpected situations, the protection mechanism can be quickly activated to protect the personal safety of testing personnel and prevent damage to the equipment itself. The automatic self check function during startup can detect the circuit status, battery level, and whether the high-voltage output module is normal in real time. Once a fault is detected, a prompt will be issued in a timely manner to prevent equipment from operating with faults, further improving the safety and reliability of the detection work. Humanized safety design fully conforms to the high-risk operation characteristics of outdoor electrical testing, allowing workers to work with peace of mind.
Considering the dispersed location, wide detection range, and complex operating environment of photovoltaic power plants, JW-J25 adopts an industrial grade lightweight body design, with a high-strength insulation material for the shell, which is sturdy, drop resistant, and has excellent insulation performance. The whole machine is lightweight and easy to carry, and is equipped with a dedicated carrying case for convenient transportation to various detection points. The equipment has excellent environmental adaptability and can operate stably in outdoor environments such as low temperature, high temperature, and high humidity. Its dust-proof and moisture-proof design can resist outdoor wind, sand, and rain erosion. Whether it is an open ground power station or a small space rooftop photovoltaic or box transformer, it can successfully complete the testing work.
The device operation process has been comprehensively simplified, with clear high-definition LCD display and a simple Chinese interface with simple buttons. Parameter setting and testing can be completed with just one click, eliminating the need for complex professional operations and lowering the threshold for use. The built-in large capacity lithium battery has a long-lasting battery life, meeting the continuous detection of multiple points throughout the day. The low battery reminder function is thoughtful and practical. The device supports automatic storage of detection data and historical record query, which can quickly organize detection data, establish electrical safety detection files, facilitate subsequent traceability management, and meet the standardized and regulated operation and maintenance management needs of photovoltaic power plants.
Jiangsu Jingwei Technology has been deeply involved in the field of electrical testing equipment for many years, and is well versed in the pain points of electrical safety management in the photovoltaic industry. We strictly follow the national electrical testing standards for product research and development and production, strictly control every production process, and ensure stable and reliable product quality. The JW-J25 insulation resistance tester is widely used in the photovoltaic industry and can also adapt to insulation testing in multiple fields such as power, wind power, and industrial electrical. With its safe, accurate, and durable characteristics, it has won the favor of many enterprises.
Electrical safety is the bottom line for the stable operation of photovoltaic power plants and cannot be relaxed at all. In the future, Jiangsu Jingwei Technology will continue to focus on the research and development of electrical testing technology, continuously optimize the performance and functions of JW-J25 insulation resistance tester, and enhance the level of equipment intelligence and safety. Adhere to the original intention of quality and innovation, assist major photovoltaic enterprises in improving their safety management systems with professional testing equipment, safeguard the safe, stable, and efficient operation of photovoltaic electrical systems, and provide escort for the safe development of the new energy industry.
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