Graduate direction of electrical engineering and automation, which is weak current and which is strong current?

I am an electric power from North China Electric Power University, and I need to learn strong electricity if I want to enter the power grid. The best is the power system and its automation, because many people want to enter the dispatching center of the power grid. Secondly, power electronics, that is, weak electricity controls strong electricity, which is the development direction of power in the future, followed by relay protection and high voltage. Entering the power grid, schools are very important. Besides those famous brands, undergraduates also need TEPCO, Transmission Line of Three Gorges University, Nanjing Institute of Information Technology and Changsha Institute of Technology.