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).
Graph of output speed curves for a Lucas E.575 Dynamo under various connection configurations.

Identifier  WestWitteringFiles\C\May1919\  Scan56
Date  6th May 1919
  
E.{Mr Elliott - Chief Engineer}
MAIN AND CONTROL CURRENTS (AMPERES)
DYNAMO SPEED (R.P.M.)
OUTPUT SPEED CURVES
OF
LUCAS E.575. DYNAMO
variously connected
supplying 6 fully charged
large capacity cells
in series
(a) As Plain shunt machine
(b) Control brush directly connected to negative brush
(c) Correctly connected
(d) Negative brush disconnected.
(e) Plain shunt, control brush used as negative brush.
(e) Control current
(b and c)
(a)
X
  
  


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