The following statements about disconnecting switches are correct ()
A、Isolating switch is a kind of switch without arc extinguishing device
B、In the closed state can reliably through the normal operating current
C、 Can withstand fault short circuit current and the impact of the corresponding electric force in the specified time
D、 Disconnecting switches can normally be switched on or off only if the circuit breaker has already disconnected the circuit
A、Isolating switch is a kind of switch without arc extinguishing device
B、In the closed state can reliably through the normal operating current
C、 Can withstand fault short circuit current and the impact of the corresponding electric force in the specified time
D、 Disconnecting switches can normally be switched on or off only if the circuit breaker has already disconnected the circuit
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