Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specification sheet for an armature, detailing its construction and winding data.

Identifier  ExFiles\Box 165\6\  img201
Date  3rd May 1929 guessed
  
X6003

ARMATURE :- 24/48/4.

NO. OF SLOTS OR SECTIONS 24
NO. OF COILS OR COMM. BARS. 48
" " CONDUCTORS TO COMM. 96
" " CONDUCTORS 384

COILS PER SLOT 2
TURNS PER COIL 4
CONDUCTORS PER SLOT 16

SLOT PITCH OF COILS. 1 to 5
" " (COMM. END) 1 to 7&8
COMM. BAR PITCH. 1-25-48

M ANGLE FOR 20 H.P. 48.0°
" " " 40/50 H.P. 46.5°
  
  


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