In the power industry, what are the characteristics of each of the domestic Siemens, ABB, Schneider and State Grid work?

This issue, I still have so little right to speak. First of all, ABB, Siemens, Schneider belongs to the equipment manufacturing company, specializing in providing users with power generation, transmission, substation, distribution of a variety of power equipment, and the procurement of such equipment is precisely the State Grid Corporation, the South Grid Corporation, as well as a variety of power plants, end-users of electricity. Secondly, in terms of the nature of the work, ABB, Siemens, Schneider's corporate nature determines that if you want to go to these three companies, either research and development (more boring), either in the factory (responsible for production, quality control, etc.), either in the marketing department, either in the sales department; if it is in the State Grid, either in the livelihood (production planning) department, either in the operation and maintenance department, or in the marketing department. . Relative to the grid company, ABB, Siemens, Schneider's work will be much more flexible, and the management style and the grid company is more different. In these three companies, to get promoted, most people have to work really hard and eat with their skills; however, in the State Grid or the Southern Power Grid, a few people eat with their skills, and most of them still muddle through. Moreover, most of the time, the grid company is in the position of the A side, so naturally it is a bit of a bull's-eye. Some people can't stand the dullness of the grid company's work, jumped ship to a foreign company, feel very cool, but also some people feel that all of a sudden there is no sense of stability.