Electrical safety is the core cornerstone of stable operation of photovoltaic power plants, and insulation performance and grounding reliability are the two key defense lines of electrical safety. Photovoltaic power plants are exposed to outdoor environments for a long time, and are susceptible to environmental erosion such as sun exposure, rain, sandstorms, and humidity. The insulation layer of cables is prone to aging and damage, and the grounding device is prone to corrosion and failure, which can lead to safety accidents such as leakage, electric shock, short circuit, and lightning strikes, threatening personnel safety and equipment stability, and causing loss of power generation revenue. Suzhou Laikesi New Energy Technology Co., Ltd. (LAILX) is deeply engaged in the field of new energy electrical safety testing. Based on years of technical accumulation and scene practice, it has launched the LXH601 insulation grounding comprehensive tester, which has the core advantages of integrated integration, high-precision detection, intelligent operation, and high anti-interference. It breaks the pain points of traditional testing equipment's single function, cumbersome operation, and insufficient accuracy, and provides a one-stop, full scene accurate detection solution for the electrical safety of photovoltaic power plants, becoming the "electrical safety guardian" of photovoltaic power plant safety operation and maintenance.

With the development of photovoltaic power plants towards scale and high voltage, the DC voltage level has been raised to 1500V, which puts higher demands on the comprehensiveness, accuracy, efficiency, and safety of electrical safety testing. Traditional testing equipment has obvious shortcomings: insulation resistance testers, grounding resistance testers, conductivity testers, and other equipment have single functions, and operation and maintenance personnel need to carry multiple instruments back and forth for work, with cumbersome wiring and low efficiency in a single inspection; Some devices have insufficient accuracy and are susceptible to outdoor electromagnetic interference, resulting in large deviations in detection data and inability to accurately evaluate insulation and grounding status; The operation is complex, lacks intelligent analysis and alarm functions, relies on manual judgment, and is prone to missing safety hazards; The equipment has a low level of protection and is difficult to adapt to harsh outdoor environments, resulting in poor durability. The LAILX R&D team addresses industry pain points by integrating multi parameter detection technology, high-precision sensing technology, and intelligent control technology to create the LXH601 insulation and grounding comprehensive tester, achieving integrated detection of insulation, grounding, conductivity, and voltage parameters. The accuracy, efficiency, intelligence, and durability are comprehensively upgraded, accurately matching the high-voltage and large-scale operation and maintenance needs of photovoltaic power plants.

The core breakthrough of LXH601 insulation grounding comprehensive tester lies in its integrated multifunctional design, completely subverting the traditional "one machine, one use" mode. The equipment integrates six core functions, including insulation resistance testing, grounding resistance testing, conduction testing, AC/DC voltage detection, polarity testing, and ground fault location (GFL). It does not require frequent switching of equipment and wiring, and can complete multiple safety inspections of key equipment such as photovoltaic power plant components, inverters, combiner boxes, cables, and grounding systems in one operation. The efficiency of a single inspection is increased by more than 40%. Supports dual pole mode (DUAL) and timed mode (TIMER) insulation detection: Dual pole mode can simultaneously measure the insulation resistance of the positive and negative poles of the circuit to ground, accurately evaluating the insulation status of the equipment; The timed mode can set the detection time, automatically record changes in insulation resistance, and adapt to long-term insulation performance monitoring needs. The insulation test voltage covers 250V, 500V, 1000V, and 1500V, perfectly adapting to the testing requirements of 1500V high-voltage photovoltaic systems.

High precision detection and high anti-interference ability ensure accurate and reliable data, and build a solid core defense line for security detection. In terms of insulation resistance testing, the range covers 0.1-200M Ω, with an accuracy of ± 5% rdg ± 5 Ω, which can accurately detect the resistance drop caused by slight aging or damage of the insulation layer. The grounding resistance test range is 0-200 Ω, with an accuracy of ± 2% rdg ± 0.1 Ω. It can accurately evaluate the grounding performance failure caused by corrosion and looseness of the grounding device, ensuring rapid current discharge during lightning strikes. Conducting tests can detect the conductivity status of cables and wiring terminals, and identify hidden dangers such as false connections and broken wires; Voltage detection supports AC/DC voltage measurement with an accuracy of ± 0.5%, and can monitor system voltage anomalies in real time. The equipment adopts a high anti-interference circuit design, which complies with electromagnetic compatibility standards such as GB/T 17626.2, and can resist strong outdoor electromagnetic interference. It can still stably output accurate data in strong electromagnetic environments such as inverters and transformers, avoiding misjudgments and omissions.

Intelligent operation and high durability design, suitable for complex outdoor operation and maintenance scenarios, enhance operational convenience and equipment reliability. The device is equipped with a high-definition LCD touch screen, a Chinese operation interface, simple and clear logic, supports parameter setting, real-time data display, and historical record query, making it easy for beginners to get started quickly. Equipped with sound and light alarm function, it can set insulation resistance and grounding resistance thresholds, automatically sound and light alarms when abnormal data is detected, and promptly remind operation and maintenance personnel to investigate hidden dangers. Built in large capacity storage, capable of storing thousands of sets of detection data, supporting data export and report generation, facilitating operation and maintenance archive management and data traceability. The whole machine adopts a high-strength protective shell, with a dust-proof and waterproof grade up to IP65, which can adapt to a wide temperature working environment from -20 ℃ to 50 ℃, and can withstand rainstorm, sand, high temperature, low temperature and other harsh outdoor environments; The compact and lightweight body, combined with a portable bag, makes it easy to carry to various photovoltaic power plant sites such as mountains, rooftops, deserts, etc., and can be easily operated by a single person.

With excellent performance and reliable quality, the LXH601 insulation grounding comprehensive tester has been widely used in photovoltaic power plant construction acceptance, daily operation and maintenance, fault diagnosis, regular annual inspection and other scenarios. It is also suitable for electrical safety testing in the fields of power, industry, construction and other areas. During the construction and acceptance stage of photovoltaic power plants, the insulation and grounding performance of the system can be comprehensively tested to ensure electrical safety standards before the power plant is put into operation; In daily operation and maintenance, key equipment can be regularly inspected to promptly detect hidden dangers such as insulation aging and grounding failure, and prevent safety accidents; During troubleshooting, it is possible to quickly locate the points of leakage and short circuit faults, thereby improving the efficiency of fault handling. At present, the device has been highly recognized by numerous photovoltaic power plant owners, operation and maintenance enterprises, and testing institutions, with excellent market reputation, helping multiple photovoltaic projects achieve safe and stable operation and sustainable power generation revenue.

As an innovative leader in the field of new energy electrical safety testing, Suzhou LAILX always adheres to the research and development concept of "safety, precision, efficiency, and reliability", focuses on the electrical safety pain points of the photovoltaic industry, and continues to launch high-quality testing equipment. The LXH601 insulation grounding comprehensive tester launched this time is LAILX's heavyweight work in the field of photovoltaic electrical safety. Its integrated, high-precision detection, and intelligent operation characteristics redefine the standards for photovoltaic electrical safety testing and help improve the safety and operation level of photovoltaic power plants. In the future, LAILX will continue to deeply cultivate the field of new energy electrical safety, increase research and development investment, break through core technologies, launch more innovative products, and safeguard the high-quality development of the global photovoltaic industry, helping to achieve the "dual carbon" goal.