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Procedure for testing the falling away point of a dynamo cutout by reducing speed and observing an ammeter.


Identifier  ExFiles\Box 60\2\  Scan005
Date  16th October 1931 guessed
  
-3-

(6) The dynamo speed shall be reduced until the ammeter A reading is zero. The connections to this ammeter shall then be reversed, after which the speed shall gradually be reduced still further until the cutout contacts fall apart. The instant of falling away will be shown by the drop to zero of the needle of the ammeter A. {Mr Adams} The reading preceding this instant shall be noted and shall not exceed 2.0 amperes.

Hs {Lord Ernest Hives - Chair} /Pgt.
  
  
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).


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