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).
Standard Volt-Ampere characteristics of a battery for Dynamo tests.

Identifier  ExFiles\Box 31\1\  Scan069
Date  17th June 1920
  
Cancelled 8461/T22 7.10
17.6.20.
X. 294. - STANDARD VOLT AMPERE CHARACTERISTIC OF BATTERY FOR DYNAMO TESTS. X.664.
Amperes. (a) Cold volts. (b) Hot volts.
0 12.4 Balancing volts. 13.6
1 12.6 13.7
2 12.8 13.8
3 13.0 13.9
4 13.2 14.0
5 13.4 14.1
6 13.6 14.2
7 13.8 14.3
8 14.0 14.4
9 14.2 14.5
10 14.4 14.6
11 14.6 14.7
12 14.8 14.8
Limits +- .1
Note. The (a) characteristic assumes an external circuit resistance of .1 ohm together with an E.M.F. rise of .1 volt per ampere.
The (b) characteristic assumes an external circuit resistance of .1 ohm together with no rise of E.M.F.
M.R. 208A. (1000) T.L.S. (N) CO. 664. 19-3-20. (C1935)
  
  


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