18:30-22:00 on the evening of July 5, 2020，The third cloud salon of the Global Energy Internet University Alliance and the fifth youth cloud salon of the China Electrotechnical Society "Global Energy Internet Electrical Equipment Technology Innovation and Development" - Senior Scholar Lecture Hall was successfully held。This meeting was reported and discussed online through Tencent Conference、WeChat group interaction、Convened in the form of a combination of Bilibili video live broadcast，More than 10,000 people watching online at the same time，The event was a complete success。

This conference is co-sponsored by the Global Energy Internet University Alliance and the China Electrotechnical Society，High Voltage Insulation Plasma Science Group of Youth Working Committee of China Electrotechnical Society、Hosted by Shandong University。The opening of the conference was hosted by Vice Dean Yang Ming of the School of Electrical Engineering of Shandong University，Secretary-General Han Yi of China Electrotechnical Society、Deputy Director Xu Ming, Cooperation Bureau of the Global Energy Internet Development Cooperation Organization、Executive Vice Dean Zhang Hengxu of the School of Electrical Engineering of Shandong University delivered a speech respectively。At the end of the meeting，Deputy Dean Li Qingquan of the School of Electrical Engineering of Shandong University gave the closing speech。

In the special report session, 5 chief engineers from major equipment manufacturing companies and leading research scholars from universities were invited to give wonderful academic reports。

Chief Engineer Zhong Jianying of State Grid Pinggao Electric Group gave a report titled "Core Technology and Development Trends of High-Voltage Switchgear"，The report starts with the main technologies involved in high-voltage switchgear，Introducing the current main switch equipment according to different application scenarios，And analyzed the future development trend of high-voltage switchgear。final，Zhong Gong also summarized the future technology trends of energy interconnection and smart grid。

In view of the many challenges faced by ultra-high voltage DC cables，Professor Yin Yi, Vice Dean of the School of Electronic Information and Electrical Engineering of Shanghai Jiao Tong University, conducted the "Extruded Insulated Ultra-High Voltage DC Cable Challenge、Report titled “Key Technologies and Countermeasures”。The report points out seven major challenges and three key technologies facing ultra-high voltage DC cables，And proposed three major coping strategies to solve existing problems。

Chief Engineer Tan Chong of Shandong Electrical Group Shandong Electric Power Equipment Co., Ltd. focuses on "Technological Development and Application of Converter Transformers"，Detailed introduction to the structure and main equipment of the converter station as well as the function and structure of the converter transformer，Summary of domestic DC engineering and converter transformer technology introduction、The process of localization from joint research and development to independent design，And introduced engineering examples of DC innovative development in my country。

General Manager Hao Xiang of Xike Company of TBEA Xinjiang New Energy Co., Ltd. gave a report on “Research and Development and Thinking of Major Power Electronic Equipment from the Perspective of Energy Internet”，This report starts from the perspective of existing problems in the construction of energy Internet，Giving innovative photovoltaic power generation、Flexible DC transmission、Smart active power distribution and other solutions，He also gave a detailed introduction to the principles and applications of each solution with examples。

Report by Li Dejun, Product Management Director of Siemens Energy Co., Ltd., on environmentally friendly high-voltage products，The theme is "Development status and engineering application of SF6-free environmentally friendly high-voltage products based on vacuum arc extinguishing and clean air insulation technology"。The report starts with the development of environmentally friendly high-pressure products、Performance、Introducing the research results of Siemens in terms of standards and other aspects，And shared the development status of environmentally friendly high-pressure products and typical engineering application cases。

In the guest interview session，In addition to the above reporting experts，We also invited Huang Kun, deputy director of the Global Energy Internet Development Cooperation Organization, and Zhang Hengxu, executive vice president of the School of Electrical Engineering of Shandong University。First of all, Deputy Director Huang Kun introduced the work of Global Energy Internet and Professional Alliance，Dean Zhang Hengxu shared Shandong University’s contribution to talent training in the strategic development of the Global Energy Internet。Several experts who gave the report answered some questions from online participants，And in view of the current research status of global energy Internet electrical equipment technology、Difficulties and future development trends were discussed and summarized。

Global Energy Internet University Alliance Cloud Salon aims to actively promote related work of the Global Energy Internet University Alliance，Promote mutual exchanges between units，The University Alliance holds global energy internet academic salon events from time to time，Content includes scientific research related to energy Internet、Talent training and other topics。Participate by inviting experts in the industry，Analysis of industry hot spots、Looking ahead to future development，Provide young scholars with a broad vision and new perspectives for innovative scientific research。