Machine Design Parts

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Across
  1. 3. An assembly of insulated conducting segments connected to the rotating armature winding.
  2. 6. Change-over switching in a periodic and automatic manner without interruption of the electric current.
  3. 7. A distributed winding in which the individual coils of each phase group per pole are concentric and have different coil spans.
  4. 8. Set of series connected turns.
  5. 9. The rotating speed at which resonance occurs.
  6. 11. A material which contains movable electrical charges.
Down
  1. 1. The factor by which short pitching a coil reduces the back e.m.f.
  2. 2. The amount of electrical energy stored for a given electric potential.
  3. 4. Magnetic interaction between stator and rotor resulting in undesired machine operation such as jerkiness.
  4. 5. The number of tooth pitches which separate the slots in which the two sides of a coil are placed.
  5. 10. Loss The electrical losses in a machine caused by the magnetisation of the core iron.