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).
Dynamo testing, choke additions, and control brush settings for tank engines.

Identifier  ExFiles\Box 163\2\  img032
Date  11th January 1933
  
-2- Hs{Lord Ernest Hives - Chair}/Wst.6/KT.11.1.33

a relatively low inductance as compared with coils
of other makes.

With regard to the dynamo, we are arranging
to carry out tests as soon as possible, to ascertain
what effect the addition of chokes in the leads has
on the control brush setting etc. This is important
because the dynamos we are now supplying for the tank
engines are set to their maximum value for safe heating,
which is slightly in excess of normal setting we give
them for the cars.

Hs{Lord Ernest Hives - Chair}/Wst.
  
  


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