DC Electrics - Aircraft Power Systems

What is the power system for a single-engine aircraft?

What is a dipole or two wire system?

What is a single pole (unipole or earth return) system?

What is the most common type of system on an aircraft with metal construction?

• Single Pole (Unipole or Earth Return) System

• Dual Pole System

• Isolated System

• Grounded System

What do generators or alternators convert?

• Mechanical energy to electrical energy

• Electrical energy to mechanical energy

• Chemical energy to electrical energy

• Thermal energy to electrical energy

What does the Voltage Regulator maintain?

• Output voltage of the generator or alternator

• Input voltage of the battery

• Current flow in the circuit

• Temperature of the generator

What is the purpose of an overvoltage protection unit?

• To protect against dangerously high output voltage

• To increase the generator output

• To maintain battery voltage

• To convert AC to DC

What does the generator cut-out prevent?

• Battery feeding current back into the generator

• Overvoltage in the system

• Current flow to the loads

• Generator from starting

What do rectifiers in the alternator end frame do?

• Convert AC to DC

• Convert DC to AC

• Regulate voltage

• Control current flow

What do rectifiers in the alternator end frame do?

• Convert AC to DC

• Convert DC to AC

• Regulate voltage

• Store energy