At present, what kind of high-voltage circuit breaker is widely used in 110kV and above power grids.（ ）
A、Vacuum circuit breaker
B、High voltage circuit breaker
C、SF6 circuit breaker
D、 Air circuit breaker
A、Vacuum circuit breaker
B、High voltage circuit breaker
C、SF6 circuit breaker
D、 Air circuit breaker
Electrical Equipment and Operation（电气设备及运行）
章节列表
Chapter 1 Cognition of Power Plants and Stations10Chapter 2 Switching Equipment and Operation57Chapter 3 Transformer and Operation38Chapter 4 Current-limiting Electrical Appliances and Operation9Chapter 5 Reactive Power Compensation Equipment and Its Operation10chapter 6 Busbar, Cable, Insulator and Operation10Chapter 7 Basic Operation of Electrical Primary System22Chapter 8 Power Distribution Device and Operation33