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).
Flux test report for a motor, form 1.

Identifier  ExFiles\Box 35\4\  scan 094
Date  28th January 1922
  
MOTOR FORM 1.
FLUX TEST OF MOTOR.
Date:- 28.1.22
Motor under test:- R.R. Gas.
No:- 1
No. of excitation turns per pole. 5 1/2
No. of armature conductors in series between brushes. 58
2nd

| Exciting current (amperes) | Speed. R.P.M. | Volts. | Volts/Speed. | Flux per pole. | Remarks. |
|----------------------------|---------------|--------|--------------|----------------|--------------|
| 20 | 500 | .930 | .00186 | 48,100 | Advance |
| | 1000 | 1.85 | .00185 | | |
| | 1500 | 2.80 | .00187 | | |
| 80 | 500 | 2.68 | .00536 | 137,300 | |
| | 1000 | 5.33 | .00533 | | |
| | 1500 | 7.90 | .00526 | | |
| 20 | 500 | .982 | .00196 | 50,400 | Central |
| | 1000 | 1.97 | .00197 | | |
| | 1500 | 2.89 | .00193 | | |
| 80 | 500 | 2.72 | .00544 | 139,400 | |
| | 1000 | 5.40 | .00540 | | |
| | 1500 | 8.00 | .00533 | | |

19.5.21.
  
  


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