Photovoltaic DC 2000V technology refers to the technology of transmitting and applying the DC power generated by photovoltaic modules at a voltage level of 2000V in photovoltaic power generation systems. Its working principle is based on the basic principle of photovoltaic power generation, that is, using the photovoltaic effect. When sunlight shines on photovoltaic modules, photons interact with electrons in semiconductor materials, allowing electrons to obtain enough energy to generate electrons and holes that move in a directional manner under the action of the electric field to form DC power. In the photovoltaic DC 2000V system, through special circuit design and component selection, the low-voltage DC power output by photovoltaic modules is boosted and transmitted in the form of 2000V high-voltage DC power. In photovoltaic systems, the improvement of voltage levels is an important direction of technological development. From the early lower voltage levels, it has gradually developed to the 1500V system that is now widely used. At present, photovoltaic DC 2000V technology is gradually emerging. Compared with the traditional 1000V and 1500V systems, photovoltaic DC 2000V has significant advantages. In theory, higher voltage can effectively reduce the current, thereby reducing the resistance loss during the transmission process and improving the overall efficiency of the system. From the perspective of voltage level, 2000V is significantly higher than 1500V and 1000V. In terms of power transmission, according to the power formula P = UI (where P is power, U is voltage, and I is current), under the same power transmission requirements, the higher the voltage, the smaller the current. According to Joule's law Q = I²Rt (where Q is heat, i.e., lost energy, I is current, R is resistance, and t is time), the reduction in current will greatly reduce the resistance loss in the line. Under the same line resistance and transmission time, the line loss of the 2000V system can be significantly reduced compared to the 1500V system. This can bring considerable economic benefits to large-scale photovoltaic power stations. In addition, the 2000V system also has certain advantages in equipment cost and floor space. Due to the reduction in current, thinner cables can be used, reducing the cost and weight of the cables, while also reducing the space required for cable laying and the difficulty of construction. At present, technologies such as artificial intelligence, digital twins, and cloud computing are constantly innovating, digital technology is deeply integrated with new energy system technology, and application scenarios are constantly enriched, achieving cost reduction and efficiency improvement throughout the photovoltaic life cycle. 2000Vplug-in SPDs used in combiner boxes,PCB type SPDs in inverters, line lightning arresters, and supporting monitoring terminals have emerged. Following the development trend of the industry,Anhui Jinli has m...

Dear Customers, Please be informed that our company will be closed from 24th , Jan to 4th , Feb for Lunar New Year holiday. Normal business will resume on 5th, Feb. However, I will check my email(Jinlispd@ahjinli.com) every day. And if you f you have any urgent issues during the holidays, please feel free to contact us at Whatsapp 86-15209885162. Thank you for your understanding and support. We wish you a wonderful and prosperous New Year filled with joy and success! Best regards. Anhui Jinli Electric Tech. Co., Ltd

  From January 9th to 10th, 2025, the annual working meeting of the Electrical Design Professional Committee of the China Petroleum and Chemical Exploration and Design Association was successfully held in Zhuhai, Guangdong.   The meeting was attended by more than 180 people, including Rong Shili, Executive Vice President and Secretary General of the Association, Geng Yuxia, Deputy Secretary General and Director of the Industry Service Department of the Association, Zhou Wei, Director of the Electrical Special Committee, Party Committee Member and Deputy General Manager of Shenhua Engineering Technology Co., Ltd., and expert representatives from 72 units including design institutes, petrochemical production enterprises, scientific research institutes, universities and manufacturing enterprises. The meeting was co-chaired by Li Shi, Deputy Director and Secretary General of the Electrical Special Committee, and Bai Bing, Deputy Secretary General.   During the meeting, Mr. Li Shi, deputy director and secretary-general of the Electrical Design Committee, delivered a report entitled "Summary of the Electrical Committee's Work in 2024". The report comprehensively summarized the committee's work in 2024 from three aspects: standardization work, industry service capacity building, and influence building. The committee will accelerate the promotion of new quality productivity in green development and digital empowerment of petrochemical electrical majors.   Anhui Jinli Electric Tech. Co., Ltd. (hereinafter referred to as Anhui Jinli) was honored to participate in the co-organization of this industry event as a specially invited member. During the meeting, Mr. He Ming, manager of Anhui Jinli's Technical Research Department, brought a special report on "Digital Age - Application of Intelligent Lightning Protection in Industrial Power Distribution System and Future Prospects", which deeply analyzed the application prospects of intelligent lightning protection systems and demonstrated the company's innovative achievements and forward-looking thinking in this field.   In particular, the in-depth interpretation and analysis of domestic and international lightning protection standards in the report won unanimous praise from experts and leaders present, fully demonstrating Anhui Jinli's professional strength and contribution in the industry. This achievement further consolidates our determination to build the world's best lightning protection brand.   Anhui Jinli will continue to uphold the development concept of "original technology as the guide, customer value as the center, and strivers as the foundation", deepen the field of medium and low voltage lightning protection, and continuously promote the comprehensive development of R&D, production, sales and services. We focus on lightning protection of electrical systems and are committed to providing users with a worry-free lightning protection experience. We look forward to ...

  On January 8, 2025, Anhui Jinli Electric Tech. Co., Ltd. held a technical exchange at Guodian Changjiang Ecological New Energy, mainly involving internal and external lightning protection design, lightning protection detection, the application of intelligent lightning protection in new energy systems, and photovoltaic intelligent power-saving cabinets to reduce costs and increase efficiency of photovoltaic power stations.   Jinli Electric technicians shared the standards and basis for internal and external lightning protection design in new energy (wind power and photovoltaic) systems. For wind power and photovoltaic systems, national and international standards are usually referenced, such as China's national standards "Technical Specifications for Wind Turbine Engineering" (GB/T 50030) and "Specifications for Construction and Acceptance of Photovoltaic Power Generation System Engineering" (GB/T 19939), as well as standards issued by the International Electrotechnical Commission (IEC), such as the IEC 61400 series and IEC 62548.   The lightning protection detection mainly includes the detection and evaluation of lightning protection measures in the new energy system. Common contents include grounding system testing of buildings or equipment, lightning strike risk assessment, and effectiveness testing of lightning protection equipment. The detection methods mainly include on-site investigation, use of testing instruments, and data analysis.   The application of intelligent lightning protection in new energy systems helps realize unmanned substations. Intelligent lightning protection refers to the use of advanced sensors, data analysis and control technologies to achieve intelligent monitoring, early warning and response in lightning protection systems. In new energy systems, intelligent lightning protection technology can monitor lightning activities in real time, predict lightning risks, and automatically execute lightning protection strategies through intelligent control systems to improve lightning protection effects and reliability. At the same time, intelligent lightning protection technology can also be applied to unmanned operation and maintenance of substations to achieve remote monitoring and management of lightning protection systems.   Jinli Electric recommended a new photovoltaic smart energy-saving cabinet and introduced its cost-reduction and efficiency-increasing effect on photovoltaic power stations. Photovoltaic smart energy-saving cabinet is an energy-saving device used in photovoltaic power stations. It optimizes the operation of photovoltaic power generation systems by precisely controlling the current, voltage and power in photovoltaic power generation systems. Photovoltaic smart energy-saving cabinets can automatically adjust the power generation of photovoltaic power stations according to lighting conditions and grid demand, thereby improving the power generation efficiency of photovoltaic sy...

  Last Friday, Professor Xu Dong of Anhui Polytechnic University （AHPU） came to Jinli Electric again and issued a letter of appointment to Yang Zhen, the general manager of Jinli, to appoint Yang Zhen as a graduate tutor and industrial professor ofAHPU. Jinli and AHPU opened a new chapter of in-depth cooperation.   General Manager Yang Zhen and Professor Xu Dong focused on key issues in industry-university-research and basic research, had in-depth exchanges, and promoted the implementation and transformation of scientific research results. Afterwards, Professor Xu Dong visited the Jinli’s surge protection device production workshop, key laboratories and other departments, and learned in detail about the core manufacturing technologies such as different varistors, laser brazing, induction brazing and reflow soldering, and praised the advanced technology of Jinli SPDs. Professor Xu Dong also introduced in detail his academic research in the research and development of varistor preparation technology, brazing material preparation and brazing industry optimization, and shared relevant support policies such as industry-education integration and project application. He hoped that schools and enterprises would be closely integrated around talent training, project application and technology research and development.      The cooperation withAHPU is a continuous expansion ofJinli’s school-enterprise platform cooperation. Focusing on the corporate mission of "protecting users from lightning" with the nine-square three-dimensional protection technology, Jinli will continue to delve into the forefront of lightning protection, create a safe electricity use environment, and jointly create a brilliant future for lightning protection.

  From December 13th to 15th, the 2024 Academic Annual Meeting of the Electrical Professional Committee of the Anhui Civil Engineering and Architecture Society was held at the Golden Eagle Shangmei Hotel in Wuhu City, Anhui Province. Anhui Jinli Electric Tech. Co., Ltd. (hereinafter referred to as "Jinli) brought new generation of surge protector devices and intelligent products to make a wonderful appearance.   This year's academic annual meeting, with the theme of "Green, Smart and Safe", attracted many industry experts and enterprises in the province. More than 400 experts and representatives from design institutes, production enterprises, construction units and scientific research institutions attended the meeting.   Jinli focused on displaying a new generation of low-voltage surge protection devices and intelligent products, which attracted leaders and young designers from the design institute. They showed great interest in our spds because they not only performed well in terms of power safety, but also represented the latest technological advances in the field of lightning protection. Designers said that in the past they only designed related plans on drawings, but had never seen such advanced physical products. This exhibition broadened their horizons and gave them a deep understanding of the practical applications and technical advantages of surge protective devices.   This annual meeting not only allowed Jinli to showcase its technical achievements in the field of low-voltage surge protection device, but also laid a solid foundation for our cooperation with design institutes and other industry partners. In the future, we plan to strengthen interaction with design institutes, hold technical exchanges and training activities regularly, and help designers gain a deep understanding of and master advanced surge protection technologies. We believe that through continued cooperation and innovation, we can jointly promote the development of power safety and lightning protection technology and create a safer and smarter electrical environment. Jinli looks forward to working hand in hand with more partners to jointly meet new opportunities and challenges in the industry.

  In order to improve employees' fire safety awareness and enhance their rescue organization and emergency escape capabilities for safety accidents such as fires, on August 6, 2024, Anhui Jinli organized all employees to participate in fire safety training and emergency drills.   Teacher Jiao from Anhui Liujin Fire Education Center explained the professional knowledge of fire safety and drill precautions. This fire drill simulated fire emergency escape and fire extinguishing drills in the work area. At the beginning of the drill, smoke filled the air. After the fire alarm was triggered, all employees quickly switched to emergency mode and evacuated to the designated safe area in an efficient and orderly manner.   After all the staff arrived at the safe area, Teacher Jiao evaluated the performance of the staff, pointed out the problems in the staff's escape drill, and further improved the staff's emergency response capabilities in the face of emergencies. He also gave a detailed demonstration and professional guidance on how to use fire extinguishers.   This fire safety training and actual combat drill further enhanced the fire safety awareness of employees, improved their emergency escape and self-protection capabilities in emergency situations, and enabled the company to better implement the principle of prevention first and prevention and control combined. In the future, Anhui Jinli will also gradually strengthen the safety education and training of employees, make corresponding safety plans, and ensure that safe production is effectively guaranteed!

In accordance with the guidance of "Transportation and Supply Equipment Letter No. 325" and "Transportation and Supply Equipment Letter No. 240" issued by the Transportation Bureau of China Railway Corporation, GB 50057 "Design code for protection of Structures against lightning" and GB 50343 "Technical code for protection of building electronic information system against ligtning", Anhui Jinli Electric Tech. Co., Ltd has fully combined the two basic principles of lightning protection zoning and lightning protection classification, and launched the "distributed" lightning protection system and the "centralized" lightning protection system. It can effectively suppress strong lightning from invading the secondary system of the traction substation and prevent the secondary system equipment of the traction substation from being damaged by strong lightning intrusion.  The products including surge protection devices, isolation transformer cabinet, comprehensive intelligent lightning protection screen of Anhui Jinli Electric Tech. Co., Ltd. can meet the relevant technical requirements and standards and provide effective lightning protection measures.