Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Table defining the new standard volt-ampere characteristic of battery and leads for dynamo tests.

Identifier  ExFiles\Box 31\1\  Scan086
Date  1st October 1920
  
X. 294. NEW STANDARD VOLT-AMPERE CHARACTERISTIC OF BATTERY AND LEADS FOR DYNAMO TESTS.

Amperes. (A) Cold volts. (B) Hot volts.
0 12.4 (Balancing volts). 13.6
1 12.6 13.725
2 12.8 13.85
3 13.0 13.975
4 13.2 14.1
5 13.4 14.225
6 13.6 14.350
7 13.8 14.475
8 14.0 14.6
9 14.2 14.725
10 14.4 14.850
11 14.6 14.975
12 14.8 15.1
13 15.0 15.225
14 15.2 15.35
15 15.4 15.475
16 15.6 15.6

Limits ±

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 an E.M.F. rise of .025 volt per ampere.

EFC.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙