Which of the following operations does not result in a reduction in oil pressure in a hydraulic actuator ( ).
A、Start oil pump
B、The circuit breaker closing
C、The breaker points brake
D、Hydraulic gear oil
A、Start oil pump
B、The circuit breaker closing
C、The breaker points brake
D、Hydraulic gear oil
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