NR Electric Co., Ltd News
NR has actively participated in IEEE T&D, held from April 17th to 19th in Denver, the USA. The IEEE PES T&D Conference and Exposition attracts pioneering companies and individuals from around the world to take part as both exhibitors and attendees. The IEEE Power and Energy Society (PES) embraces planning, research, development, design, application, construction, installation and operation of apparatus, equipment, structures, materials and system for the safe, reliable and economic gene...
On April 12, 2022, the NR PCS-9531 electronic load bank system was successfully put into operation at the Ferronickel project in Indonesia. The successful operation of the system will improve the primary frequency modulation capacity of the enterprise power grid, enhance the power grid damping, and effectively improve the static and dynamic stability of the grid. It has great application value for ensuring the safe, reliable, and stable operation of the islanding power network. Isolated island...
The response time of the control device is 2.3 ms, the breaking time of the fast mechanical switch is 1 ms, and the overall effective time is 9.2 ms. The artificial grounding short-circuit test of the fast switch-based fault current limiter (FCL) was successfully accomplished. On December 20, 2021, the test results were announced at the 750 kV Helanshan substation of Ningxia Power Grid. As the first application in the EHV core hub substation in China, the performance indexes of PCS-8351 fast sw...
Luxi Island microgrid system, which was designed, supplied, commissioned, and delivered by NR, has been successfully put into operation. The system effectively solved the black start problem of a 10 kV feeder level microgrid with impulsive load, and has won high recognition from users with advanced and intelligent control strategy, a stable and reliable microgrid system. Microgrid integrated solutions NR provides microgrid-integrated solutions including microgrid energy management systems Lu...
On February 9, 2022, the NR light rail energy feedback system with DC De-icer function was successfully implemented for the first time, effectively coping with the recent low-temperature rain and snow weather in Nanjing and ensuring the safe operation of trains on the Nanjing-Jurong line. In the early morning of February 7, 2022, there was a sudden heavy snow in Nanjing. With the continuous low temperature, the DC overhead lines of Nanjing-Jurong elevated station were covered with ice, and the...
On March 29, 2022, the DC back-to-back project in Guangdong, Hong Kong, and Macao Bay Area (hereinafter referred to as Guangzhou Project) which lasted 15 months was successfully put into operation. The Guangzhou project put into operation this time adopts the new generation flexible DC transmission system of NR, including flexible DC protection & control, measurement, phase selection closing and opening devices, as well as flexible direct converter valve and other core equipment on the east...
On May 30, the first 100 MWp tidal photovoltaics power station in China was connected to the grid with full capacity. This is the first time that China has completely developed solar and tidal energy. The successful grid connection of this power station marks that China has made new achievements in the field of comprehensive utilization of marine energy. NR Electric provides a complete set of protection and monitoring equipment for the project and implements the engineering integration of 110kV...
On May 11, 2022, Hunan 500 kV Shuicheng substation was successfully put into operation. The substation is the first 500 kV intelligent substation in Hunan Province to realize the remote 'one key sequence control' function. The implementation and application of remote 'one key sequence control' enables the staff of Changsha EHV centralized control station to operate the 500 kV Shuicheng substation equipment more than 300 km away only in front of the centralized control computer, greatly shorteni...
Recently, the first 220 kV Badr#2 traction station of Egypt's first electrified railway-Egypt Ramadan 10th City Light-Rail Transit (LRT) railway project successfully energized. Egypt's Ramadan 10th City LRT connects Cairo City, satellite cities along the East and the new capital of Egypt, with a total length of about 65 kilometers. Eleven stations are set along the line. The completion of the project will drive the economic development of surrounding cities and facilitate the travel of nearly f...
On January 20, 2022, the first converter valve of The China Great Bay Area DC back-to-back project was successfully put into operation for the first time, marking an important step forward for the interconnection of the core areas of the Eastern and Western Pearl River Delta of Guangdong power grid. The converter valves were supplied by NR Electric (NR). Unit 1 on the East side of Guangzhou took the lead in entering the system commissioning stage among the four units of the whole project, creat...
Since January 22, Hubei has ushered in cold-wave weather and many snowfalls. The power grid company has issued an early weather warning. On January 24, the ice covering thickness of 220 kV Ainan line exceeded 31 mm, exceeding the maximum allowable value of the design. There was a risk of tower collapse, which seriously threatened the safety of the power grid. There was an urgent need for an ice-melting operation on-site to eliminate potential security hazards. Power grid security was urgent. Un...
Yangjiang Pumped Storage Power Station is a key project located in Guangdong Province with the largest single-unit capacity in China (400 MW) has successfully completed the trial operation. The core protection & control equipment such as static frequency converter (SFC) and system protection provided by NR has laid a solid foundation for the smooth start-up, grid connection and safe operation of the unit. Yangjiang storage power station NR Electric has developed the SFC system with the hi...
November 8, 2021, the first wind turbine of Jiangsu Rudong Offshore Wind Farm was successfully put into operation through flexible DC transmission, opening a new era in China of offshore wind power to transmission through flexible DC transmission, marking the successful application of NR flexible DC protection & control system in offshore wind power project. DC transmission project NR provided a complete set of protection & control systems, measurement systems, integrated monitoring R...
On October 29, 2021, after more than 50 hours of continuous testing, the DC de-icing equipment of the 500kV Tianxing intelligent substation completed the current raising operation with the line. NR has added another high-capacity DC de-icier in China's Southern Power Grid. Tianxing substation is the second 500kV smart station of the Yunnan power grid. It was put into operation in July 2021. The rated capacity of the de-icing equipment is 103MW and the rated output DC is 5000A, which can meet th...
On October 15, 2020, the stability control system of the Ali power networking project undertaken by NR was put into operation smoothly. The Ali networking project has realized the interconnection of the Ali power grid and the central Tibet power grid, fundamentally solving the serious power shortage problem in the Ali Region and Western Xigaze. The stability control system of the Ali interconnection project is an important system to ensure the safe and stable operation of the power grid in the...
The first 50MVar renewable energy distributed synchronous condenser in China successfully completed a 168-hour trial operation in a 330 kV Xuming substation and was officially put into operation recently. This also marks the successful delivery of NR's first distributed synchronous condenser protection & control system, which will escort the output of clean energy in Qinghai for a long time in the future and contribute to the realization of China's carbon-neutral goal. NR continues to...
On September 23, 2021, China’s first offshore pilot oilfield shore power project, the Qinhuangdao-Caofeidian Oil field Group shore power project, belonging to China National Offshore Oil Corporation (CNOOC) in the Bohai Sea region, was successfully put into operation. Qinhuangdao-Caofeidian oilfield shore power project includes an offshore 220 kV offshore Haifeng power platform, 220 kV onshore Haidiao switching station, 220 kV offshore Haiyu power platform, and 220 kV Haishun switching st...
PCS-8351 fast switching fault current limiter developed by NR Electric was officially put into operation, after 168 hours of stable operation in Xinjiang, China on September 25, 2021. This project solves the problem of excessive short-circuit current caused by centralized transmission of renewables, reduces the impact of short-circuit current on electrical equipment of the main power grid, and improves the flexibility and reliability of power grid regulation. northwest power grid In recent ye...
Recently, the wind power frequency modulation system developed by NR has completed the commissioning and performance verification test in the CGN Daishan 516MW offshore wind farm. The test results show that the primary frequency modulation performance of the system is excellent. The successful application indicates that NR frequency modulation technology has taken another step forward. Primary frequency modulation of renewable energy is one of the effective means to maintain the frequency...
Recently, the entire system test of the world's first DC self-recovery energy dissipation device undertaken by NR was successfully completed and witnessed by experts, which laid a solid foundation for the engineering application of DC controllable self-recovery energy dissipation device. NR undertook the system integration design and complete supply of pole II DC controllable self-recovery energy dissipation device for Baihetan Jiangsu ± 800 kV UHV DC transmission project. NR techni...
Recently, NR PCS-985 exciter protection has been successfully put into operation in Ningde and Yangjiang 1000MW nuclear power plant, effectively solving the problem of "weak protection" of exciter, which is of great significance for improving the operation reliability of nuclear power equipment. At present, the excitation system of large-scale nuclear power generators generally adopts brushless excitation mode, which has the problem of weak protection configuration or even no protection. ...
On August 7, 2021, PCS-8910 fast switching voltage sag control independently developed by NR was officially put into operation in Shandong Jingbo Petrochemical. The formal commissioning of the project marks another major application of power grid voltage sag control in the industrial field. The fastest voltage stabilization time is less than 10ms, effectively reducing enterprise production accidents caused by voltage sag and improving the power supply reliability of the power grid. Voltage dip...
Recently, NR successfully won the bid for Mongolia's first photovoltaic (PV) energy storage microgrid project, providing a containerized energy storage PCS solution to help Mongolia expand the application of renewable energy. In Mongolia, the power supply mainly depends on coal-fired power generation and electricity import. Mongolia is gradually expanding the application of clean energy power generation to gradually reduce electricity import and greenhouse gas emissions. advanced energy storag...
NR Electric has won the bid for Japan's energy storage application project again, providing containerized BESS PCS solution to help the zero carbon city construction of Gifu ENA City, Japan. ENA Electric Power Company is gradually employing renewable energy and battery energy storage system (BESS) to achieve zero carbon city construction. Integrated PCS solution The containerized energy storage PCS solution has a variety of automatic control operation modes The integrated PCS solution provid...
On June 26, 2021, after 168 hours of trial operation, the Yazhong Jiangxi ±800 kV HVDC transmission project was officially put into operation. NR provides a complete set of core equipment for the project, such as a UHV converter valve, protection & control, valve cooling, synchronous condenser secondary system, measurement and fire protection system, etc. hydro, wind, and solar power transmission The surging power from the middle reaches of the Yalong River will light up the urban...
On June 28, 2021, The first batch of units of the Baihetan Hydropower Station on the Jinsha River completed the 72-hour trial operation and officially put into commercial operation, which is the world's largest hydropower project under construction with the highest single-unit capacity. As the main secondary equipment supplier, NR provides a complete set of key equipment for the project, such as generator transformer unit protection, switchyard protection, information management system, and oth...
On June 7, 2021, the generator terminal sub-synchronous damping control (GTSDC) system of Datang Xilinhaote (Xilinhot) power plant completed the oscillation suppression test and put into operation successfully. NR Electric worked as the total solution provider for this project. The successful operation of the system enhances the damping performance of the complex resonance between the generator and the grid, and can effectively solve the torsional vibration problem of the turbine generator shaf...
On June 3, the Huzhou distributed power flow controller (DPFC) pilot project, developed and supplied by NR Electric, successfully withstood the manual short circuit test. The system responded accurately and the test results met the expectations. The success of this manual short-circuit test fully verified the ability of NR DPFC ability to withstand AC short-circuit current, AC fault ride through ability, and the accuracy of cooperation with AC line protection, marking that the 220 kV DPFC proje...
On April 20, 2021, with the smooth completion of the rated power operation test, the 150 kV / 60 MVar STATCOM, which is installed in the power transmission network of INDEPENDENT POWER TRANSMISSION OPERATOR S.A. (Greek TSO. Hereinafter referred to as “IPTO”), was officially put into operation. The STATCOM project is an important supporting project of Crete-Peloponnese interconnection phase I project of IPTO. Reliable and environmentally friendly The interconnection project will re...
On April 20, 2021, NR Electric has successfully energized the SVC project of MAN station in West Africa. Four West African countries (Cote d’Ivoire, Liberia, Sierra Leone and Guinea) cross-border electricity link (Abbreviated as “CLSG”), starts from MAN station in Cote d’Ivoire, passes through Liberia and Sierra Leone, and ends at Linsan station in Guinea. The project connects 12 substations in four countries, with a total length of 1303 km. The CLSG project will suppor...