尊龙凯时人生就是搏·官方(中国)

UHV Power Transmission
Successfully developing ±1000kV and below converter applied in UHV DC and HVDC power transmission projects, DC Control &Protection System, forming a complete set of solution service capabilities including feasibility study,system design, core equipment research and development, production test、installation and commissioning ,maintenance guarantee,project management, quality management basing on DC converter valves, water cooling equipment and valve control protection equipment;the core technology application level is in a leading position in China, and widely used in large power grid interconnection and long-distance high-power transmission. Undertaking 33 projects having been built or under construction.
Smart Metering
Based on international and industry standard and R&D capabilities, XJ smart metering has formed a full-chain product system which includes measurement, acquisition, communication, and AMI System, building an edge computing processing platform with smart terminals as the center, applied in the overall solution of intelligent measurement in typical scenarios such as high-quality station area, station area anti-stealing, orderly electricity, and shared electricity.
Smart Substation
The concept of "standardized design, factory prefabricated, integrated construction” has realized the transformation of substations from “construction” to “procurement” The construction period of substations can be shorten by 50% and occupied land can be reduced by 30%, and the overall investment cost is reduced by about 5%, which can be applied widely in power grid substation, new energy power generation booster station, rail transit traction substations and substations in the industrial and mining fields.
UHV Power Transmission
Successfully developing ±1000kV and below converter applied in UHV DC and HVDC power transmission projects, DC Control &Protection System, forming a complete set of solution service capabilities including feasibility study,system design, core equipment research and development, production test、installation and commissioning ,maintenance guarantee,project management, quality management basing on DC converter valves, water cooling equipment and valve control protection equipment;the core technology application level is in a leading position in China, and widely used in large power grid interconnection and long-distance high-power transmission. Undertaking 33 projects having been built or under construction.
Smart Metering
Based on international and industry standard and R&D capabilities, XJ smart metering has formed a full-chain product system which includes measurement, acquisition, communication, and AMI System, building an edge computing processing platform with smart terminals as the center, applied in the overall solution of intelligent measurement in typical scenarios such as high-quality station area, station area anti-stealing, orderly electricity, and shared electricity.
Smart Substation
The concept of "standardized design, factory prefabricated, integrated construction” has realized the transformation of substations from “construction” to “procurement” The construction period of substations can be shorten by 50% and occupied land can be reduced by 30%, and the overall investment cost is reduced by about 5%, which can be applied widely in power grid substation, new energy power generation booster station, rail transit traction substations and substations in the industrial and mining fields.
Hot News
31
2022-05
The voltage control device provided by XJGroup for the China-Laos Railway
16:44, December 3, 2021 Leaders of China and Laos issued a departure order China-Laos railway opens to traffic North from Kunming, China South to Vientiane, Laos The China-Laos Railway is 1035 kilometers long Composed of Kunyu section, Yumo section and Mowan section It is an important part of the central line of the Trans-Asian Railway It is also after the “Belt and Road” initiative was put forward The first investment, construction and operation with the Chinese side as the mainstay The whole line adopts Chinese technical standards and uses Chinese equipment International railway projects directly connected to China's railway network The first electrified railway in Laos It is of great significance for promoting the economic and social development of Laos Complete the supply task ahead of schedule At the request of the customer, the material matching time of the first traction substation was shortened from the normal 45 days to 25 days. The time was tight and the task was heavy. In order to ensure the successful implementation of the project and the performance of the contract on schedule, the first traction substation was successfully supplied in only 21 days. Effectively protect the safe operation of trains The China-Laos Railway adopts the "AC-DC-AC" power supply system scheme, and obtains a stable power supply voltage of 10 kV through AC-DC conversion. It provides a strong guarantee for the safe and reliable operation of the system. In response to the large voltage fluctuation of the power grid in Laos and the unstable railway traction voltage, XJ Group successfully developed a voltage control device, which can quickly switch to the backup power supply when the voltage fluctuation is large, effectively protecting the safe and stable operation of primary equipment and trains. Day and night to complete field service commissioning XJ Group actively overcome the dual pressure of the COVID-19 Outbreak epidemics and the tight construction period, and has dispatched 19 domestic and foreign Service personnel, with a total of 1,520 persons/day going to the site for equipment installation and debugging. Due to the need for vehicle operation tests during the day, equipment debugging can only be carried out from 19:00 to 4:00 in the morning, and the project personnel must work day and night. Complete all product delivery tasks with high quality In order to facilitate the follow-up technicians to maintain the system, XJ Group completed the check of 900,000 entries, the dynamic and static tests of the protection measurement and control device and the monitoring system within a week, and realized the whole system of the Chinese and English versions of the traction integrated automation system and the power distribution integrated automation system. Realize unattended traction substation In the domestic section of the China-Laos Railway, XJ Group innovatively adopts the data sharing technology based on the protection measurement and control device of the bay layer, which effectively simplifies the fault location and wiring method, and comprehensively improves the fault location accuracy and operation and maintenance efficiency. In the domestic substation auxiliary monitoring system, new technologies and new applications such as guide rail robot inspection, camera video inspection, image intelligent recognition, and intelligent security are adopted, which truly realizes unattended traction substations. The China-Laos Railway is a landmark project along the "Belt and Road" countries It is the road of friendship, prosperity and happiness for the people of China and Laos For Laos to get rid of the "landlocked country" dilemma It is of great significance to realize the rapid development of foreign economy Chinese electrical equipment will continue to implementation of the new development concept completely, accurately and comprehensively. Actively participate in the "Belt and Road" construction Actively integrate into the domestic and international "dual circulation" Strive to build a world-class smart electrical equipment group
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30
2022-05
The Matiari-Lahore ±660 kV DC transmission project
At 8:30 a.m.2021 local time on August 18, 2021, Matiari-Lahore ±660 kV DC transmission project successfully put into operation for 168 hours, with a full-load operation capacity of 4 million kilowatts. During the period, the Pakistani National Grid operates stably. The success of the test marks that the Matiari-Lahore ±660 kV DC transmission project is fully ready for commercial operation. Importantance The Pakistani Matiari-Lahore ±660kV DC transmission project, which is undertaken by XJ Group Corporation, is the priority implementation project in the China-Pakistan Economic Corridor project signed by President Xi Jinping during his visit to Pakistan in May 2015 and is also strategic important project along the “Belt and Road” countries. It is the first HVDC transmission line in Pakistan. The annual power transmission capacity of the project can reach up to 35 billion kWh. After completed and put into operation, it will be the transmission line with the highest voltage level, the longest transmission distance and the largest transmission capacity in Pakistan, which will effectively alleviate the power shortage in Pakistan's. Milestone As the core equipment provider of the Matiari-Lahore ±660kV DC project in Pakistan, XJ is responsible for the supply of complete sets of equipment such as converter valves, DC control and protection, DC measurement devices, AC protection, and DC power supplies. The AC/DC control and protection system and DC transmission converter valve equipment provided Converter Station, as the intelligent "brain" and strong "heart" of the DC transmission system, realizing cross-regional long-distance power transmission for the project and providing strong technical support. It has been more than three years since the Matiari-Lahore ±660kV DC power transmission project in Pakistan started in early 2017. During this period, unexpected events such as the project delay in 2018, the conflict in India-Pakistan Kashmir in 2019, and the outbreak of the COVID-19 pneumonia epidemic in 2020. The engineers from XJ leaved for Pakistan from 2019, overcoming the unfavorable factors such as the local COVID-19 pneumonia epidemic, high temperature and heat, limited security, and inconvenient travel, completing one task after another, achieving breakthroughs one after another, and interpreting XJ responsibility and responsibility as a "great power" with faith and perseverance . In January 2020, all the equipment was delivered to the site, and the first staff of the XJ project team entered the converter station of the project. In June, overcomimg the challenges of the raging COVID-19 pneumonia epidemic abroad, in order to promote the resumption of work and production of overseas projects, 10 engineers of XJ people went again to Pakistan. In July 2020, with nearly 13 hours of high-intensity work every day, engineer team of XJ successfully completed the installation of 336 converter valve components at the two converter stations in Mattiari and Lahore, with a total of 24 converter valve towers, 24-sided valve control cabinet installation, commissioning and sub-system testing. In September 2020, it took 78 days to complete the single-screen debugging and sub-system testing of the 358 control and protection panel cabinets at the two converter stations of the Project, and completed the witness work of third-party engineers IE and OE. In October 2020, the construction of the transmission line of the DC project was completed, the DC station system of the Lahore converter station was commissioned, and the DS3000 operator control system supplied by XJ was commissioned at NPCC (Pakistan National Commission) and successfully settled in Pakistan National Dispatching Center From November 2020 to February 2021, due to the weakness of the Pakistan power grid, experiencing low-frequency oscillations in the power grid, hurricane damage to the AC tower, and nationwide power outages, the Pakistani energy department suspended the system joint commissioning test. After more than two months of technical research, the Pakistani side agreed to resume the test. In December 2020, the Murtiari and Lahore converter stations of the project in Pakistan supplied by XJ successfully completed the OLT test, indicating that the system commissioning of the converter stations at the outcoming and incoming ends has been completed. The converter valve, control and protection equipment of the goods are in good operation. In August 2021, the single/double maximum load test of the project was completed. At 8:30 on August 18, local time, 168-hour trial operation was completed. The converter valve and valve control equipment, AC and DC control equipment, DC field current measurement devices and other core equipment supplied by XJ were in good operation state and are scheduled to be put into commercial operation in September. In the three years from 2019 to 2021, XJ has always faced customers with high-quality and efficient products, precise and standardized management, and an active and professional team. In the past three years, XJ has continuously made breakthroughs and innovations, kept up with customer needs, provided system solutions in a timely manner, took the initiative to undertake system research, and developed PSS/E DC control and protection simulation models, filling the gap in XJ's DC electromechanical transient modeling field, to further strengthen the optimization design of core equipment such as converter valves, develop compact, low-loss high-pressure converter valves, and create a precedent for low-loss converter valves to be applied overseas. In the past three years, the Matiari-Lahore ±660kV DC power transmission project Engineering System Commissioning Commando was established, and the party members on the project site took the lead in leading the on-site project team members to complete more than 4,000 equipment tests of various types, forming DC control and protection, converter valves, and DC measurements that benchmarked against international standards. More than 20 standardized reports on core equipment such as installations have laid a solid foundation for the internationalization of XJ Project. In the past three years, the service awareness has been continuously strengthened, and more than 100 technical personnel of Pakistan NPCC (Pakistan National Transmission and Distribution Corporation) and NTDC (Pakistan National Transmission and Distribution Corporation) have received the maintenance and repair training in DC transmission principles, AC and DC control and protection design principles, converter valves and other core equipment. The owner of the project, the power transmission and transformation team and the installation team of Pakistan gave great honor to XJ engineers in the speed and quality of the project. The engineering team of the project actively carried forward the work spirit of "dare to fight tough battles and be good at winning battles", to overcome the difficulties, and won two tough battles in the overseas epidemic prevention war and the project in three years. While interpreting the spirit of XJ with practical actions, they also used excellent technology, superb products, and high-quality services to create international high-quality DC projects, shaping China's "golden business card" for DC power transmission, and accelerating the construction of the global energy Internet, boosting " The Belt and Road Initiative and the "going out" of high-end equipment have made positive contributions.
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