As a high-voltage direct current electrical system, photovoltaic power plants are exposed to complex outdoor environments such as humidity, dust, and corrosion for a long time, and their electrical safety is facing severe challenges. The insulation performance of components, inverters, cables, and other equipment is prone to decline over time, and the grounding system may also experience excessive resistance due to corrosion, leading to safety accidents such as leakage, short circuits, and even fires. In response to this pain point, Shanghai LAILX has launched the LXH601 comprehensive insulation and grounding tester, which provides comprehensive protection for the electrical safety of photovoltaic power plants through integrated design and high-precision detection. AC/DC voltage withstand insulation grounding tester

LXH601 breaks the limitations of traditional equipment's "one machine, one use" approach, integrating eight core functions including insulation resistance testing, grounding resistance testing, equipotential continuity testing, and AC/DC voltage testing. Operations personnel do not need to frequently switch equipment and wiring, and can complete critical safety inspections in one operation, increasing the efficiency of a single inspection by more than 40%. In terms of insulation testing, the equipment supports 1500V high voltage detection, with a measurement range of 0.1M Ω to 10G Ω and an accuracy of ± 5%, effectively identifying insulation aging and moisture hazards; The grounding resistance test adopts the four pole method to eliminate the influence of contact resistance, with an accuracy of ± 2%, ensuring the reliable conduction of the grounding system.

In complex outdoor environments, LXH601 exhibits excellent anti-interference ability and precision. The equipment adopts self-developed high-precision testing chips and signal processing technology to effectively filter electromagnetic interference in densely populated areas of inverters and combiner boxes. Its innovative live insulation testing function adopts dedicated active compensation technology, which can measure the working state insulation resistance under real working conditions during the day, and can better reflect the actual safety status of the system than traditional cold state testing at night. At the same time, the equipment has intelligent insulation fault location function, which can accurately lock the fault points such as cable damage or junction box water leakage, greatly reducing maintenance time.

In terms of security protection and data management, LXH601 has overvoltage, overcurrent, short circuit, and reverse connection protection functions. If abnormal working conditions occur during the testing process, the equipment will automatically cut off the output and issue an alarm prompt. The high-voltage testing end adopts insulation protection design to prevent the risk of electric shock. The device is equipped with a large capacity lithium battery with a battery life of up to 8 hours, which meets the needs of all day outdoor inspections. The supporting PC management software can achieve data export, report generation, and trend analysis, helping users grasp the trend of equipment insulation and grounding status changes, and providing solid data support for operation and maintenance decisions.

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