When is FADAC/LOCAP fully operational?

When is FADAC/LOCAP fully operational?

• A. In standby mode
• B. During start-up
• C. During shutdown
• D. In normal mode

Answer: (D)

FADAC/LOCAP are fully functional when the turbine is in normal operating mode because that is when all sensors, control loops, fault-detection logic, alarms, interlocks, and data logging are actively engaged and continuously processing live data. In normal mode, the system is continuously monitoring parameters, evaluating against limits, and ready to react to any unsafe condition with appropriate protection actions. In standby, the engine isn’t running and many subsystems are idle or powered down, so the full data acquisition and protection functions aren’t active. During start-up, the system goes through initialization and sequencing; readings and protections may be limited or staged until parameters settle and safe operating conditions are reached. During shutdown, the focus is on a controlled ramp-down, so the normal, continuous monitoring and protection functions aren’t operating in their standard, fully active way. Thus, the unit’s protections and monitoring are truly “fully operational” only in the normal mode.

FADAC/LOCAP are fully functional when the turbine is in normal operating mode because that is when all sensors, control loops, fault-detection logic, alarms, interlocks, and data logging are actively engaged and continuously processing live data. In normal mode, the system is continuously monitoring parameters, evaluating against limits, and ready to react to any unsafe condition with appropriate protection actions.

In standby, the engine isn’t running and many subsystems are idle or powered down, so the full data acquisition and protection functions aren’t active. During start-up, the system goes through initialization and sequencing; readings and protections may be limited or staged until parameters settle and safe operating conditions are reached. During shutdown, the focus is on a controlled ramp-down, so the normal, continuous monitoring and protection functions aren’t operating in their standard, fully active way.

Thus, the unit’s protections and monitoring are truly “fully operational” only in the normal mode.