What component does the standby hydraulic system use to operate?

The standby hydraulic system is specifically designed to ensure hydraulic pressure is maintained in case of a primary system failure. In this context, the system uses a single electric motor-driven pump to provide hydraulic pressure independently of the main system. This electric pump can quickly activate when there is a detection of a loss in hydraulic pressure, ensuring that critical functions remain operational.

Utilizing an electric motor-driven pump is advantageous because it can deliver consistent and controlled hydraulic power, ensuring reliability in emergency situations. The electric nature of the pump eliminates the reliance on other types of energy sources, which can be more complex or less dependable under circumstances where the standby system must engage.

In contrast, a pneumatic pump primarily uses compressed air, making it less suitable for hydraulic systems that depend on fluid dynamics. A gas-powered turbine also does not directly contribute to hydraulic power in the same manner as electric pumps do, as it generates power for other types of mechanical energy conversion. Additionally, a battery-operated actuator is typically used for controlling mechanical movement rather than generating hydraulic pressure. Thus, the choice of a single electric motor-driven pump is crucial for efficiently maintaining hydraulic functionality when needed most.