NR Electric Co., Ltd News

The Fujian-Guangdong Interconnection Back to Back DC Transmission Project was formally completed and put into operation. NR has provided complete core equipment such as converter valve and valve cooling system, measuring system and stability control for the project. The Fujian Guangdong Project is a major project of State Grid Corporation of China and China Southern Power Grid Corporation to ensure the safe and reliable supply of electricity and help achieve the goal of carbon peaking and carbo...

On August 15, 2022, the energy storage system of Zhejiang Xiaoshan Power Plant was successfully connected to the grid. This project is the first generation side energy storage project in Zhejiang Province. For the first time in China, a large-scale electrochemical energy storage power station was built independently and coordinated by the existing site of decommissioned generator sets. Energy storage system of Zhejiang Xiaoshan Power Plant The successful operation of the project will greatly...

The distributed photovoltaic (PV) group control device for active distribution network developed by NR, completed the on-site function and performance test in Fujian CATL Industrial Park and was put into operation. The device has functions such as active power control, voltage control, reactive power control, and power factor control etc. The test results show that the power control response time is less than 5s, the control accuracy can reach 1%, and all performance indicators meet the require...

In July 2022, PT. NR Electric Jakarta (NR Jakarta) accomplished Local Content Level (TKDN) certification for the products of Control Relay Panel and Substation Automation System. It is a milestone for NR’s transformation to be a reputable local manufacturer in Indonesia. PT. NR Electric Jakarta is NR’s subsidiary company in Indonesia. Since its establishment in 2012, NR Jakarta has implemented the localization strategy and continued to provide high-quality products and services to I...

On July 15, 2022, the ± 360MVar Static Var Compensation (SVC) system supplied by NR, successfully completed various system tests and 72-hour trial operation in the 750kV Shazhou substation in Dunhuang, Gansu Province, and was officially put into operation. The SVC phase II project completed this time, together with the SVC phase I supplied by NR and the controllable shunt reactance(CSR), forms the Flexible AC Transmission Systems (FACTS) with the largest single station regulation capacit...

On July 1, 2022, the Baihetan Jiangsu ±800kV HVDC transmission project (hereinafter referred to as ‘Baijiang project’) of State Grid Corporation of China (SGCC) was completed and put into operation. Clean hydropower from Baihetan Hydropower Station will be delivered to Jiangsu continuously, providing a strong guarantee for the power supply of East China Power Grid during the ‘peak summer’ period. Baihetan Hydropower Station The total length of the line is 2080 k...

In July 2022, the Utilities Communication Architecture International User Group (UCAIug) organized the sixth Interoperability (IOP) test in Italy. Despite the impact of the epidemic, this IOP still attracted the participation of all the world's top suppliers, with 19 institutions participating in the IOP. NR participated in the IOP test for the fourth time and achieved a complete success. NR exhibits its technical strength in IOP test In the IOP test, NR fully demonstrated its technical stren...

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...

On April 12, 2022, NR PCS-9531 electronic load bank system was successfully put into operation at Ferronickel project in Indonesia. The successful operation of the system will improve the primary frequency modulation capacity of 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 islanding power network. Indonesia - the ‘country o...

Recently, the first unit of Zungeru hydropower station in Nigeria was successfully commissioned and realized power generation, which laid a good foundation for the power generation of subsequent units. NR has designed hydropower unit protection solutions for the project and provided key equipment such as generator transformer unit protection and switchyard protection. Zungeru hydropower station Zungeru hydropower station is located in the middle and upper reaches of Kaduna river Zungeru hydr...

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 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 cor...

Kunliulong project is an important project to implement the West to East power transmission and absorb clean energy in China. It is also a major science and technology pilot project in the power industry. The commissioning of the project will further optimize the energy structure of the five southern provinces and help to achieve the goal of carbon peak and neutralization, which is of great strategic significance. Kunliulong project The project will span four provinces, including Yunnan,...

Recently, the first 220kV Badr#2 traction station of Egypt's first electrified railway - Egypt Ramadan 10th City Light - Rail Transit (LRT) railway project was 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. 11 stations are set along the line. The completion of the project will drive the economic development of surrounding cities and facilitate the travel of nearl...

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 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 the Nanjing-Jurong elevated station were covered with ice, and...

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...

The response time of the control device is 2.3ms, the breaking time of the fast mechanical switch is 1ms, and the overall effective time is 9.2ms. 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 750kV Helanshan substation of Ningxia Power Grid. PCS-8351 fast switch based FCL tested The performance indexes of PCS-8351 fast switch based FCL developed by NR wer...

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 has exceeded 31 mm, exceeding the maximum allowable value of the design. There was a risk of tower collapse, which seriously threatens the safety of the power grid. There was an urgent need for an ice melting operation on site to eliminate potential security hazards. Security hazards of the power...

Yangjiang Pumped Storage Power Station is a key project located in Guangdong Province with the largest single unit capacity in China (400MW). The Yangjiang Pumped Storage Power Station 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 Pumped Storage Power Station NR...

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...

On 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. Rudong wind power project is the first offshore wind power flexible DC transmission project in Asia undertaken by the Three Gorges...

Recently, the generator terminal sub-synchronous damping control (GTSDC) system supplied by NR Electric (NR) quickly identified and accurately suppressed the torsional vibration of the shafting of two 660MW units, controlled the torsional vibration amplitude within the safe range, and significantly improved the safe and stable operation level of large generator units. GTSDC system can identify various modes of torsional vibration of the unit shafting, inject sub / super synchronous current to t...

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 test, the DC de-icing equipment of 500kV Tianxing intelligent substation successfully completed the current raising operation with the line. NR has added another high-capacity DC de-icier in China Southern Power Grid. 500kV Tianxing Substation Tianxing substation is the second 500kV smart station of 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...

Recently, Hainan Wanning 9F 460MW heavy duty gas turbine unit 1 successfully completed 168 hour trial operation and was officially put into operation. NR has provided complete sets of core protection & control equipment, such as SFC variable frequency starting system, excitation system and generator transformer unit protection system for the project, so as to comprehensively protect the startup, operation and safety of the unit. NR provides core protection & control equipment The Data...

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...

PCS-8351 fast switching fault current limiter developed by NR was officially put into operation after 168 hours of stable operation in Xinjian, 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 main power grid, and improves the flexibility and reliability of power grid regulation. In recent years, northwest power grid, as the mai...