电网安全运行
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“双节”期间苏州电网运行安全平稳 主网“零跳闸” 供电“零差错”
Su Zhou Ri Bao· 2025-10-09 22:24
Core Insights - Suzhou's power grid experienced significant growth in electricity demand and renewable energy output during the holiday period, indicating a robust energy supply strategy by the company [1][2] Group 1: Electricity Demand and Supply - From October 1 to 8, Suzhou's maximum electricity load and daily dispatch volume increased by 28.35% and 23.48% year-on-year, respectively [1] - Renewable energy output in Suzhou grew by 27.93% during the same period, contributing to a low-carbon energy supply for the holiday [1] Group 2: Operational Measures - The company implemented comprehensive power supply measures, including organizing 1,308 personnel for equipment inspections and conducting 259 infrared temperature checks on substations [1] - Special inspections were carried out on critical power supply equipment near scenic spots and transportation hubs, with 359 targeted inspections conducted [1] - The company maintained a "zero tripping" status for the main grid through stringent operational safeguards [1] Group 3: Emergency Response - A total of 141 emergency repair points and over 1,600 repair personnel were on standby 24/7, ensuring rapid response to power outages [1][2] - During the holiday, emergency repair vehicles were deployed 300 times, with 781 personnel engaged in emergency repair work [1] Group 4: Infrastructure and Safety - The company executed 215 projects related to enhancing regional power supply capacity during the holiday [2] - Safety oversight was strengthened with 23 safety inspection teams conducting comprehensive checks to identify potential hazards [2] Group 5: Electric Vehicle Charging - Total charging volume at Suzhou's charging facilities reached 375.47 million kilowatt-hours, marking a 1.10% year-on-year increase [2] - The company conducted thorough inspections of 516 charging stations and 3,000 charging piles, ensuring operational efficiency during peak demand [2] Group 6: Event Support - The company ensured uninterrupted power supply for major events such as the WTA125 International Tennis Open and the Taicang Manghe Music Festival, achieving "zero errors" in power supply [2] - All 83 power service halls and online platforms operated smoothly, providing continuous service for citizens [2]
国网泰安供电公司:带电接火为企业发展注入“电动力”
Qi Lu Wan Bao Wang· 2025-08-06 09:18
Core Viewpoint - The State Grid Tai'an Power Supply Company has successfully completed the live connection work for two power lines, ensuring sufficient electricity supply for local enterprises and supporting economic development in Tai'an [1] Group 1: Company Actions - The company has focused on enhancing the safety operation of the power grid and ensuring electricity supply in response to the increasing demand from enterprises expanding their production capacity due to rapid regional economic growth [1] - Since July, the company has completed over 40 expansion and distribution network connection operations, effectively improving power supply reliability and customer satisfaction [1] Group 2: Future Plans - The company will continue to prioritize customer satisfaction and adhere to the principle that "no power outage is the best service," aiming to minimize user perception of operations and ensure zero impact on electricity usage during work periods [1]
供电战线的“仲”流砥柱——记山东能源梁家煤矿供电部仲炳旬
Qi Lu Wan Bao· 2025-07-31 12:42
Core Viewpoint - The article highlights the dedication and responsibility of a key figure in the power supply department of Shandong Energy's Liangjia Coal Mine, emphasizing the importance of ensuring the safety and stability of the power grid during challenging conditions [1][4]. Group 1: Emergency Response - The power supply department manages 15 substations and plays a crucial role in the stability of the power grid, with the dispatcher acting as the "CPU" of the network [1]. - During the severe weather event caused by Typhoon "Meihua," the dispatcher and colleagues worked tirelessly through the night to address multiple emergency situations, successfully restoring power to affected lines [4]. - The team executed over 600 power dispatch operations annually with a 100% accuracy rate, demonstrating their commitment to safeguarding the power grid [4]. Group 2: Economic Efficiency - The dispatcher implemented strategies to enhance the economic operation of the power grid while ensuring safety, focusing on energy conservation and loss reduction [5]. - By analyzing operational data and optimizing transformer operation, the team managed to reduce system losses and electricity costs, achieving a 12.53% increase in the proportion of electricity consumption at the 110kV level [5][7]. - The adjustments made by the dispatcher resulted in a cost reduction of 800,000 yuan, showcasing effective management of operational expenses [5][7]. Group 3: Commitment and Dedication - The dispatcher consistently prioritizes work over personal time, often spending holidays on duty to ensure the power supply remains uninterrupted, reflecting a strong sense of duty [8]. - His commitment to the role has made him a model of dedication within the industry, as he balances professional responsibilities with personal sacrifices [8].
汗水浇筑光明线 变电站改造进行时
Zhong Guo Neng Yuan Wang· 2025-07-31 08:08
Core Viewpoint - The successful installation of the 35kV Shufang substation's 35kVII segment PT interval enhances the local power grid's structure, improving its flexibility and reliability, especially during abnormal conditions [6]. Group 1: Installation Process - On July 29, employees of the State Grid Nanjing Jianyang Power Supply Company completed the installation of the 35kVII segment PT interval under extreme heat conditions [1]. - The temperature at the construction site exceeded 35°C, with employees working diligently despite the harsh environment [3]. - The installation involved careful coordination and communication among the team, ensuring precise adjustments during the lifting process [5][6]. Group 2: Importance of the Installation - The addition of the 35kVII segment PT interval is significant as it allows for accurate voltage measurement during abnormal situations, providing reliable signals for relay protection devices [6]. - This enhancement is crucial for preventing the escalation of accidents and ensuring the safe and stable operation of the power grid [6]. Group 3: Employee Dedication - Employees demonstrated remarkable dedication and responsibility, working under extreme conditions to ensure the safety and reliability of the power supply [6]. - Their efforts reflect a strong commitment to their roles, contributing to the overall stability of the electrical infrastructure [6].
国网平凉供电公司:开展输电线路交跨排查保电网迎峰度夏安全运行
Zhong Guo Neng Yuan Wang· 2025-06-18 13:23
Core Viewpoint - The increasing complexity of transmission line crossings with external facilities poses safety risks, necessitating a comprehensive inspection to ensure stable operation and prevent economic losses due to potential accidents [1] Group 1: Inspection Overview - The State Grid Zhuanglang County Power Supply Company initiated a thorough inspection of transmission line crossings starting June 1, in conjunction with the Safety Production Month activities [3] - The inspection plan includes a combination of drone and manual inspections of 11 transmission lines crossing highways, provincial roads, rural roads, communication lines, residential areas, and various voltage lines [3] - The company has completed inspections of five lines, including the 3521 Water Communication Line and the 3522 Water Han Line, focusing on safety distances at crossing points [3] Group 2: Safety Measures and Management - The company will establish a crossing archive to document the locations and safety distances of crossing points, enhancing daily management of line operations [4] - Online monitoring devices will be installed on the lines to continuously track the operational status of crossing points, allowing for timely identification and resolution of potential risks [4] - Increased inspection frequency, especially during adverse weather or peak electricity usage periods, will be implemented to ensure timely detection and handling of hazards [4]
直击欧洲大停电,波及5000万人
Hu Xiu· 2025-04-29 07:56
Core Points - A large-scale power outage occurred in Spain and Portugal on April 28, affecting over 50 million people on the Iberian Peninsula, disrupting critical sectors such as transportation, communication, and healthcare [1][13][19] - The cause of the outage remains unclear, with the Spanish national grid company indicating that full power restoration may take between 6 to 10 hours [5][18] - The outage led to significant disruptions in communication services, with network traffic in Spain dropping by 37% and in Portugal by 30% [14][19] Group 1: Power Outage Details - The power load in Spain dropped from approximately 25 million kilowatts to about 14 million kilowatts around 12:30 PM, further declining to about 10 million kilowatts within an hour [3][5] - The outage was described as unprecedented and extraordinary by the Spanish national grid company [5][19] - Emergency measures were taken, including the use of backup power in hospitals and the evacuation of metro stations in Madrid and Lisbon [13][17] Group 2: Impact on Daily Life - In Barcelona, residents experienced a complete blackout, with traffic lights and public transport systems failing, leading to chaos in the streets [6][10] - Tourists in León faced disrupted travel plans, with hotels reaching full capacity and transportation services halted [11][13] - Communication services were severely impacted, with mobile networks experiencing significant outages, affecting voice call capabilities [14][19] Group 3: Government Response - Spanish Prime Minister Pedro Sánchez visited the national grid control center, promising to mobilize all resources to resolve the issue [17] - The Portuguese government held an emergency meeting to assess the situation and implement response measures [17] - The European Commission is in contact with Spain, Portugal, and European grid operators to investigate the root cause of the incident [18][19] Group 4: Technical Aspects - The outage may have been triggered by a fault in the Spanish grid, exacerbated by extreme temperature variations leading to abnormal oscillations in high-voltage lines [19][22] - Prior to the incident, Spain had achieved 100% renewable energy supply for the first time, raising concerns about the risks associated with increasing renewable energy capacity [22]