Which two conditions will cause the IDG to automatically disconnect?

Which two conditions will cause the IDG to automatically disconnect?

• A. Over temperature or Over torque
• B. Low oil pressure or High oil temperature
• C. High speed or High torque
• D. Low oil pressure or High current

Answer: (A)

The IDG is protected by two automatic disconnects to prevent damage: if the generator overheats, or if the drive torque becomes excessive. When either limit is reached, the clutch releases and the IDG is disconnected from the electrical system. This keeps the generator and the engine’s drive train safe from thermal or mechanical damage. That’s why the correct conditions are over temperature and over torque. Low oil pressure, high oil temperature (as a single trigger), high current, or high speed aren’t the specified auto-disconnect conditions for this system in this context.

The IDG is protected by two automatic disconnects to prevent damage: if the generator overheats, or if the drive torque becomes excessive. When either limit is reached, the clutch releases and the IDG is disconnected from the electrical system. This keeps the generator and the engine’s drive train safe from thermal or mechanical damage.

That’s why the correct conditions are over temperature and over torque. Low oil pressure, high oil temperature (as a single trigger), high current, or high speed aren’t the specified auto-disconnect conditions for this system in this context.