Zhengrui Power

Project Cases

Engineering Cases

State Grid Category 1 – State Grid Transmission and Transformation


  [State Grid Jiangsu] Expansion Project for Main Transformer No. 2 at the Shicun 110 kV Substation

  [State Grid Jiangsu] General Contracting for the Renovation Project of Main Transformer No. 1 at the Fengxiang 110 kV Substation in Nanjing, Jiangsu Province

  [State Grid Jiangsu] Renovation of the 110 kV Circuit Breaker at the Wanshou 110 kV Substation in Nanjing

  [State Grid Jiangsu] Comprehensive Automation Upgrade of the 110 kV Dongshan Substation in Nanjing

  [State Grid Jiangsu] Replacement of Main Transformer No. 1 and Capacitor Banks No. 1 and No. 2 at the Nanjing 110 kV Baguazhou Substation

  [State Grid Jiangsu] Nanjing Lishui Operation and Maintenance: Dismantling of AC Panels at Honglan, Jingqiao, and Wushan 110 kV Substations

  [State Grid Jiangsu] Comprehensive Automation Upgrade of the 35kV Shishu Substation in Gaochun, Nanjing, State Grid Jiangsu

  [State Grid Jiangsu] State Grid Jiangsu Nanjing 35kV Qiaolin Integrated Automation Upgrade

  [State Grid Jiangsu] Repair of 10kV Outdoor Isolating Switch at Lishui 35kV Dongping Substation

  [State Grid Jiangsu] Reallocation and Repair of Main Transformers #1 and #2 at the 35kV Qinxiang and Yongning Substations

  [State Grid Jiangsu] Comprehensive Automation Upgrade of the 35kV Zhetang Substation in Lishui, Nanjing Power Supply Company, State Grid

  [State Grid Jiangsu] Replacement of 10kV Switchgear at the 35kV Longpao Substation in Nanjing, State Grid Jiangsu

  [State Grid Jiangsu] Tower Erection and Conductor Stringing Project for the Yuge–Baima 110 kV Transmission Line in Nanjing, Jiangsu Province

  [National Grid Jiangsu Province Electric Power Co., Ltd., Nanjing Lishui District Power Supply Branch] Framework Project for the 2020 Production Technical Renovation and Major Overhaul Construction of 110 kV and Below Substations in Lishui, Nanjing, Jiangsu Province, State Grid

  [National Grid Jiangsu Province Electric Power Co., Ltd., Nanjing Lishui District Power Supply Branch] Framework Project for the 2021 Major Technical Renovation and Overhaul Construction of Transmission Facilities at 110 kV and Below in Lishui, Nanjing, Jiangsu Province, under the State Grid

  [National Grid Jiangsu Province Electric Power Co., Ltd., Nanjing Lishui District Power Supply Branch] National Grid Jiangsu Nanjing 2022 Lishui 110 kV Transmission and Transformation Production Technical Renovation and Major Overhaul Construction Framework

  [National Grid Jiangsu Province Electric Power Co., Ltd., Nanjing Power Supply Branch] Framework Project for the 2022 110 kV Transmission Production Technical Renovation and Major Overhaul Construction Works of State Grid Jiangsu Nanjing

  [State Grid Jiangsu Electric Power Co., Ltd. Maintenance Branch] State Grid Jiangsu Nanjing: Replacement of the 110 kV Bay Circuit Breaker at the 220 kV Yinxiang Substation in 2018

  [Nanjing Yuanneng Power Engineering Co., Ltd.] 110kV Lanhuа Substation Capacity Expansion and Reconstruction – EPC Project

Related News


ESG Report v3, 2025

ESG Report v3, 2025


Zhengrui Electric Group is a proud sponsor of the Limala Marathon, with fresh fruit stations along the course to fuel the runners.

On March 3, 2024, the Nanjing Lishui Half Marathon—dubbed the “Strawberry Marathon”—welcomed 12,000 runners as spring sunshine bathed the shores of Wuxiang Mountain in Lishui, accompanied by the fragrances of blossoms and sweet strawberries. This meticulously designed course weaves together Lishui’s scenic landscapes and vibrant strawberry culture, offering participants an unforgettable marathon experience.


Hu Jingqiong, General Manager of Zhengrui Electric Power Group, has been successfully elected President of the Nanjing Lishui District Women Entrepreneurs Federation.

On November 28, 2023, the long-awaited inaugural conference of the Lishui District Women Entrepreneurs Association was grandly held at the Nanjing John Garden Hotel. Female entrepreneurs from across the district gathered together to witness this historic moment.


Pei Xudong, Deputy Commander of the East Route Group Co., Ltd. of the South-to-North Water Diversion Project, and his delegation visited Zhengrui Group, accompanied by Chief Engineer Huang Jinwei.

On March 30, 2023, a delegation of leaders from the Xuzhou Branch of the East Route Co., Ltd. of the South-to-North Water Diversion Group visited our company for research and inspection, accompanied by Executive Deputy General Manager Tang Xiaofeng and Party Secretary Liang Jiguang.


Xu Tongcun brings his novel “Years of Youth” to Nanjing Zhengrui.

Shakespeare once said, “Books are the best nourishment for the world.” Du Fu also penned the timeless line, “Having read ten thousand books, one’s writing flows with divine inspiration.” Gorky had his own view as well: “Books are the ladder of human progress.” Today, Mr. Xu Tongcun brought his work “Years” to Zhengrui and held a book‑sharing session.


What are the precautions for installing a charging station?

As electric vehicles and other electric-powered vehicles become more widespread, charging stations are attracting increasing attention and demand. To accommodate these vehicles, installing charging infrastructure has become an urgent priority. Therefore, let’s take a closer look at the installation process and related considerations for charging stations.