aircraft electrics m1

motor

electromechanical device that convert electrical energy to mechanical energy and perform important functions in electrical applications

dc motors

motor that uses dc source of electricity

series dc motor

motor where the field armature circuits are connected in series

series dc motor

motor where high starting torque but poor speed regulation

shunt dc motor

motor where field and armature circuits are connected in parallel, the field coil is in parallel with the power supply and the brushes and commutator, armature assembly

shunt dc motor

motor where low starting torque and good speed regulation

compound dc motor

short shunt compound and long shunt compound dc motor

compound dc motor

motor where high starting torque and good speed regulation

short shunt compound dc motor

motor where field winding is in parallel with the armature circuit

long shunt compound dc motor

motor where field winding is in parallel with both armature circuit and another field coil

armature assembly

consist of laminated soft iron pole piece and a commutator mounted on a rotating steel shaft

field assembly

consist of field frame and the field coil

brush assembly

consist of brushes and their holders

end shield

motor housing

ac motor

motor that uses ac source of electricity

synchronous

motor used when precise speed control is required

induction

split-phase induction motor and split-phase capacitor motor

universal

motor that will operate either ac or dc voltage applied

rugged construction, maintenance free operation, low cost

advantages of induction motor

rotor, stator

2 major parts of ac motor

hp, speed, frequency, voltage

ratings for motors

generators

converts mechanical energy into electrical energy

series-wound

generator when field coil are connected in series with the armature, but poor voltage insulation

shunt-wound

generator when field coil are connected in parallel with the armature, better voltage regulating characteristics

compound wound generator

short shunt compound wound and long shunt compound wound generator

short shunt compound wound generator

generator when field winding is in parallel only with the armature

long shunt compound wound generator

generator when field winding is in parallel with both the armature and series coil

ac generator

generator with revolving field and revolving armature

pole pieces, field coil, armature, commutator, brushes

major components of dc generator

delta, wye

3 phase configuration

kva, kw, voltage, amperes

ratings for generator

engine

prime mover

torque

turning force