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. Suzhou Laikesi New Energy Technology Co., Ltd. (LAILX) is deeply engaged in the field of new energy electrical safety testing. It 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 voltage withstand insulation grounding 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.

Portable design and user-friendly operation, suitable for efficient operation in complex outdoor scenes. The whole machine adopts a lightweight integrated design, with a body weight of only 2.8kg. Paired with a dedicated portable bag, it can be easily carried by a single person to various photovoltaic power plant sites such as mountains, rooftops, deserts, etc., without any site restrictions. The equipment casing is made of high-strength engineering plastic and has an IP54 dustproof and waterproof rating, which can resist outdoor rainwater and sand erosion; Designed with a wide temperature range, it can operate stably in environments ranging from -10 ℃ to 50 ℃ and adapt to extreme weather conditions. The operation interface adopts a 3.2-inch high-definition LCD display screen, with Chinese menu display, simple and intuitive functional layout, sensitive buttons, and beginners can quickly get started without professional training; Support one click testing, automatic data saving, simplify the operation process, and reduce the probability of human errors. 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.

From power station construction acceptance, daily operation and maintenance inspection to fault diagnosis and rectification, LXH601 insulation grounding comprehensive tester is suitable for the electrical safety testing needs of the entire life cycle of photovoltaics. During the construction phase of the power station, it can be used for insulation sampling of components, cables, inverters and other equipment upon arrival, as well as quality acceptance of grounding system construction, to control electrical safety and quality from the source; In the daily operation and maintenance stage, regular insulation and grounding inspections can be carried out to timely detect hidden dangers such as insulation aging and grounding failure, and prevent safety accidents; During the troubleshooting phase, it is possible to quickly locate the causes of faults such as leakage and short circuits, accurately identify the fault points, shorten downtime for maintenance, and reduce power generation losses. In addition to photovoltaic power stations, this equipment is also widely used for insulation and grounding safety testing in power systems, industrial electrical equipment, building electrical and other fields, with a wide range of application scenarios.

Suzhou LAILX has built a comprehensive product development, production, quality inspection, and service system based on years of experience in the research and development of photovoltaic testing equipment. The LXH601 insulation grounding comprehensive tester has undergone multiple rounds of rigorous environmental testing and scene verification. The product has stable performance and reliable quality, and has been put into use in many photovoltaic power plant projects at home and abroad, gaining widespread recognition from industry customers. The company adheres to the concept of "safety first, innovation driven, and service-oriented", providing customers with one-stop services such as equipment installation and commissioning, operation training, technical consultation, and after-sales maintenance. It has established a rapid response mechanism to promptly solve various problems encountered by customers during use and ensure stable equipment operation.

Electrical safety is the cornerstone of stable operation of photovoltaic power plants, directly related to power generation efficiency and personnel safety. The Suzhou LAILX LXH601 Insulation Grounding Comprehensive Tester, with its core advantages of multifunctional integration, high-precision detection, portable intelligence, safety and reliability, comprehensively safeguards the electrical safety of photovoltaic systems and assists in the safe, stable and efficient operation of photovoltaic power plants. In the future, LAILX will continue to deepen its expertise in electrical safety testing technology, continuously optimize product performance, provide more high-quality testing equipment for the photovoltaic industry and electrical safety field, and promote the safe and sustainable development of the industry.

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