Photovoltaic power plants are exposed to complex outdoor environments for a long time, and components, cables, combiner boxes, and other equipment are prone to insulation performance degradation due to aging, moisture, corrosion, physical damage, etc., which can lead to safety accidents such as leakage, short circuits, and fires, threatening personnel safety and power plant asset safety. Jiangsu Jingwei Technology Co., Ltd. is deeply engaged in the field of photovoltaic electrical safety testing, and has independently developed the JW-J25 insulation resistance tester. With high voltage precision testing, multiple safety protections, intelligent and convenient operation, and durability and reliability as its core, it provides professional equipment support for photovoltaic system electrical safety testing, and builds a solid defense line for the safe operation of photovoltaic power stations. DC withstand voltage, insulation impedance, grounding resistance, leakage current
The voltage level of photovoltaic systems continues to improve, and 1500V string systems have become mainstream, placing higher demands on the testing voltage, measurement accuracy, and safety performance of insulation detection equipment. Traditional insulation testing equipment has problems such as limited testing voltage levels, low accuracy, lack of safety protection, and cumbersome operation, making it difficult to meet the testing needs of photovoltaic high-voltage systems. Jiangsu Jingwei JW-J25 Insulation Resistance Tester is equipped with DC high voltage testing technology and precision sampling system, providing four levels of testing voltages of 250V, 500V, 1000V, and 1500V, perfectly adapting to the insulation detection needs of photovoltaic modules, cables, combiner boxes, inverters and other equipment. The insulation resistance measurement range is 0-100G Ω, with a measurement accuracy of ± 5%, which can accurately capture small insulation abnormalities and identify safety hazards in advance.
In terms of security protection design, JW-J25 provides comprehensive protection for the safety of testing personnel and equipment. The equipment is equipped with multiple protection mechanisms, including short-circuit protection, overvoltage protection, leakage protection, and reverse connection protection. It can withstand residual voltage surges from the tested equipment and avoid equipment damage or electric shock to personnel during the testing process; Built in intelligent self checking function, automatically detects device status, battery level, and line connection when turned on, automatically alarms and prompts the cause of the fault when abnormal, eliminating the risk of misoperation; Adopting an insulated casing and safety protection design, the detection probe is equipped with an insulated sheath, and the high-voltage output end has clear warning signs to ensure safe operation throughout the process.
Intelligent and convenient operation greatly improves detection efficiency. JW-J25 is equipped with a high-definition LCD backlit display screen, with clear numbers and intuitive readings. It supports real-time display of insulation resistance value, test voltage, test time, temperature and other parameters, and can read clearly in both strong and weak light environments; The operation interface is simple and intuitive, with one click start testing and one click data locking. It supports timed testing and polarization index testing, meeting the deep evaluation needs of insulation performance of photovoltaic systems; Built in large capacity lithium battery, long battery life, supports charging and portable mobile detection, does not rely on external power supply, suitable for outdoor power station on-site detection.
Durability and scene adaptability meet the complex working conditions of photovoltaics. The equipment adopts an industrial grade reinforced design, with a sturdy and wear-resistant shell that is dustproof, moisture-proof, shock resistant, and drop resistant. It has a protection level of IP65 and can operate stably in extreme temperatures ranging from -20 ℃ to 60 ℃, high humidity, and strong sandstorms. It is suitable for various photovoltaic power plant scenarios such as mountains, rooftops, Gobi, and coastal areas; The whole machine is lightweight and compact in size, paired with a portable protective case, making it easy for a single person to carry and operate; Support data storage and export, can record multiple sets of detection data, facilitate operation and maintenance personnel to trace the trend of insulation performance changes, and provide decision-making basis for equipment maintenance and replacement.
Jiangsu Jingwei JW-J25 Insulation Resistance Tester is widely used in photovoltaic power plant construction acceptance, regular safety inspections, fault diagnosis, equipment maintenance and other scenarios. It can accurately detect key indicators such as component to ground insulation, cable phase to phase insulation, and combiner box grounding continuity. It is the core tool for electrical safety testing of photovoltaic power plants. Since its launch, this device has gained widespread recognition from customers in the photovoltaic industry due to its advantages of precise measurement, safety and reliability, convenience and efficiency, and durable adaptation. It has helped many power plants avoid electrical safety risks and ensure stable operation. In the future, Jiangsu Jingwei will continue to focus on innovation in photovoltaic electrical safety technology, continuously optimize product performance, and safeguard the safe and healthy development of the photovoltaic industry. Shuidi Credit
DC withstand voltage insulation impedance grounding resistance leakage current, multifunctional comprehensive electrical appliance, AC/DC withstand voltage insulation grounding tester