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. The insulation performance of components, inverters, combiner boxes, cables, and other equipment is prone to decline over time, and the grounding system may also exceed the grounding resistance limit due to corrosion and looseness. Poor insulation can easily cause safety accidents such as leakage, short circuit, and fire. If the grounding fails, the fault current cannot be effectively released, posing a serious threat to equipment safety and personnel life safety. Traditional testing tools have single functions, cumbersome operations, and weak anti-interference capabilities. They require carrying multiple devices to complete multiple tests such as insulation and grounding, which is inefficient and prone to errors. Shanghai LAILX is deeply involved in the field of new energy electrical safety testing and has launched the LXH601 comprehensive insulation and grounding tester, which integrates insulation resistance, grounding resistance, conductivity, and voltage detection. With integrated design, high-precision detection, and intelligent operation, it solves the pain points of traditional testing and provides comprehensive protection for the electrical safety of photovoltaic power plants, ensuring stable and efficient operation of the system. AC/DC withstand voltage insulation resistance grounding resistance conductivity tester

LXH601 breaks the limitations of traditional devices with "one machine, one use" and achieves multifunctional integration, greatly improving the efficiency of operation and maintenance testing. The equipment integrates four core functions: insulation resistance testing, grounding resistance testing, equipotential continuity testing, and AC/DC voltage testing. It does not require frequent switching of equipment and wiring, and can complete key safety inspections of electrical equipment in photovoltaic power plants in one operation. It completely solves the problem of maintenance personnel carrying multiple instruments to and from work, and improves the efficiency of single inspection by more than 40%. In terms of insulation resistance testing, the equipment supports 1500V high-voltage insulation testing, which is suitable for the requirements of photovoltaic 1500V high-voltage systems. It can accurately measure the insulation resistance of components, cables, inverters and other equipment, with a detection range of 0.1M Ω~10G Ω and a measurement accuracy of ± 5%. It effectively identifies hidden dangers such as insulation aging, damage, and moisture; The grounding resistance test adopts the four pole method to eliminate the influence of contact resistance. The test range is 0.01 Ω~100 Ω, with an accuracy of ± 2%. It can accurately detect the grounding resistance of the grounding electrode and grounding lead, and judge whether the grounding system is reliable; Simultaneously supporting conductivity testing and AC/DC voltage detection, it can check the conductivity of the circuit and measure the system voltage, fully covering the requirements of photovoltaic electrical safety testing.

High precision detection technology and strong anti-interference ability ensure accurate and reliable testing data in complex outdoor environments. LXH601 adopts self-developed high-precision testing chips and signal processing technology to effectively filter outdoor electromagnetic interference and stray current effects. Even in the strong electromagnetic environment of photovoltaic power plant inverters and combiner boxes, it can stably output accurate test data, avoiding problems such as data drift and misjudgment. The device supports bipolar mode detection and can simultaneously measure the insulation resistance of the positive and negative poles of the circuit to ground, accurately evaluating the insulation status of the device; Equipped with insulation fault location function, it can accurately locate fault points such as cable damage, junction box water leakage, equipment insulation layer aging, etc., helping operation and maintenance personnel to quickly repair and reduce system downtime. The grounding resistance test uses AC test signals to avoid the polarization problem of grounding electrodes caused by DC testing, improve the accuracy of grounding resistance measurement, and adapt to grounding detection in complex geological environments such as soil moisture and salt alkali.

Equipped with high-capacity lithium batteries with a battery life of up to 8 hours, meeting the needs of all day outdoor inspections; Supports USB charging and data export, convenient and efficient. Comprehensive data management and security protection design, balancing operation and maintenance traceability with job security. LXH601 can automatically store test data, and the built-in memory of the body can store more than 5000 sets of test records. Each set of records includes complete information such as test time, location, parameters, and results. It supports data query, backtracking, and export, making it easy for operation and maintenance file management and fault tracing analysis. Equipped with PC management software, it can achieve functions such as data export, report generation, trend analysis, etc., helping users grasp the trend of equipment insulation and grounding status changes, and providing data support for operation and maintenance decisions. In terms of safety protection, the equipment has overvoltage, overcurrent, short circuit, and reverse connection protection functions. If there is a wiring error or abnormal working condition during the testing process, the equipment will automatically cut off the output and issue an alarm prompt to protect the safety of the equipment and personnel; The high-voltage testing end adopts insulation protection design to prevent the risk of electric shock and ensure the safety of operation and maintenance personnel.

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