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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).
Vibrator regulator and its effect on major and minor output curves for battery charging.

Identifier  WestWitteringFiles\Q\December1926-January1927\  19
Date  4th December 1926
  
Contd. -5- EFCl/T4.12.26.

vibrator regulator, the period instead of being a fraction
of a second, being represented by the average time between
operations of the cutout. If, for instance, the major
curve of output were arranged to suit the requirements of
the customer who had the biggest electrical demand on his
system, and the minor curve to suit those of the customer
who had the smallest demand on his system, then the system
would give an average supply which was automatically adjusted
to any intermediate requirements. The major curves given
for the two cases are those of the present representative
outputs of the two machines at 80°C on their respective
chassis. It would, however, with this apparatus, be
possible to make the major curve of larger proportions
than would be suitable for continuous charging to that
curve. This would enable the initial boost of the battery
to be still more rapid until the point where were reached
at which the voltage had risen sufficiently to put the minor
curve into operation.

EFC.

Attached:-
1.Unit & Mentor.
2.Blueprint diagrams.
3.Complete specification.
4.Technical diagram.
5.PC.118/9. AC.79.
6.(20 HP. blueprint curves.
(40/50 HP. " ")
  
  


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