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).
Resistance measurements for the main field and teaser windings of an E.A.C. S. Motor marked B.

Identifier  ExFiles\Box 64\1\  scan0182
Date  3rd September 1924
  
RR 239 (150 BKS.) (SH57.29-6-20.) MP 224358
ROLLS-ROYCE LTD.
INSTRUCTIONS.
To E.F.b.
Order No. WA{Mr Wallis} 77
Customer's No. X 962 D
Resistances of main field winding and teaser winding of E.A.C. S. Motor marked B.
The resistance of the teaser winding at 18°C = .502 ohms
Instruments used:-
No 98 on the 1.5 volt and ampere ranges.
The resistance of the main winding at 18°C = .01333 ohms
Instruments used:-
NO 98 on the 1.5 ampere range
NO 22407 as a millivoltmeter.
Signed H.E.W.
This Sheet must be filed on completion of the work.
  
  


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