Medium voltage switchgear is an indispensable important equipment in power system, its quality directly affects the operation safety and power supply reliability of power system.

In order to further optimize the performance of medium voltage switchgear equipment produced by our company and help industry innovation and technical level improvement, on March 27 and April 17, 2020, with the support of Changzhou science and Technology Association and Changzhou nuclear power equipment manufacturing industry association, our company organized relevant personnel from technology, inspection, sales and other departments to participate in the meeting sponsored by China Institute of Electrotechnics and sponsored by Changzhou nuclear power equipment manufacturing industry association On line training and consultation activities on "development trends of medium voltage switchgear" and "insulation technology of medium voltage switchgear" taught by authoritative experts, experts of high-end power equipment manufacturing technology expert service group of the society, and Professor Wang Ping of Xi'an High Voltage Electrical Apparatus Research Institute Co., Ltd.

Our company uses video projection method to create valuable learning opportunities for our employees to listen to the wonderful stories of experts.

Online training of "insulation technology of medium voltage switchgear"

In the online training and consultation of "insulation technology of medium voltage switchgear" on March 27, 2020, Professor Wang Ping deeply analyzed the insulation technology of medium voltage switchgear from four aspects: insulation structure design according to specified distance, insulation structure debugging according to electric field strength, insulation structure design, and development trend of insulation technology of medium voltage switchgear The problems of insulation distance and electric field strength are introduced.

In the chapter of insulation distance design, Professor Wang Ping describes the influence of altitude on the insulation performance of switch cabinet, and the correction method of insulation level, air gap, creepage distance and minimum air gap between composite insulation electrified body and insulation board at different altitudes.

In the chapter of insulation electric field strength design, Professor Wang Ping showed us the differences of insulation performance of different shapes of charged bodies in different gas insulating media, and explained the influence of electric field distribution on insulation. Then, through some typical practical cases, some specific applications of insulation distance and electric field strength in insulation structure design are analyzed, which deepen our understanding and memory of knowledge points. Finally, Professor Wang looks forward to the future development of insulation technology of medium voltage switchgear from the aspects of new technology, new materials and new detection methods.

Professor Wang Ping's online training content of "insulation technology of medium voltage switchgear" is in simple language, clear-cut and professional. Through the combination of theory and practice, it brings us a refreshing learning experience. Professor Wang Ping not only answers our questions, but also provides a clear direction for our future insulation structure research and design work.

The figure below shows the online training hall of "insulation technology of medium voltage switchgear" on March 27

Online training of "development trends of medium voltage switchgear"

With China's economy changing from high-speed growth to high-quality development, the state proposes to strengthen the environmental protection advocacy of "resource-saving and environment-friendly" social construction, and the arrival of "the fourth industrial revolution" led by intelligence, the medium voltage switchgear, as an important part of the energy and power industry, will also usher in new transformation and development opportunities.

In the online training and consultation of "development trends of medium voltage switchgear" on April 17, 2020, Professor Wang together with us looked forward to the future development blueprint of medium voltage switchgear.

In the chapter of intelligent research on medium voltage switchgear, Professor Wang Ping elaborated the construction of future smart grid from the aspects of equipment function, control, monitoring, information transmission, etc., as well as the state detection technology of medium voltage switchgear and vacuum circuit breaker, as well as the technical research vision of intelligent medium voltage switchgear, and clarified the integration, modularization, primary and secondary development of intelligent components Fusion, intelligent monitoring, power electronic technology application and other related technologies.

Then, the 12kV environment-friendly box type gas insulated metal enclosed switchgear C-GIS, 40.5kV The technical characteristics and research intention of seven leading-edge environmental protection alternative products in the industry, such as N2 gas insulated C-GIS, new SF6 free switching elements, environmental protection compressed air load switch, 12kV environmental protection gas insulated ring main unit, atmospheric pressure air insulated ring main unit, 12kV plug-in vacuum circuit breaker and plug-in fixed cabinet.

Finally, Professor Wang Ping vividly describes the development direction of switch cabinet factory from digitalization to intellectualization through pictures.

Through this training, the vision and design ideas of designers have been greatly broadened, and the direction of our future product development and design work has been guided.

The figure below shows the online training Huaguan venue of "development trends of medium voltage switchgear" on April 17

Training summary

Through the two online training and consulting activities mentioned above, the trainees of our company have benefited a lot and gained a lot, and obtained many important constructive and forward-looking suggestions. In the later stage, our company will vigorously participate in the similar high-level technical training and consulting activities to improve the technical and business ability of personnel, improve the product quality and market competitiveness, and make the enterprise a leader in the industry.