Instructions for testing a standard cutout operating with a high output dynamo.
| Identifier | ExFiles\Box 65\2\ scan0209 | |
| Date | 17th November 1930 | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC {E. Fowler Clarke - Electrical Engineer} Order No: AD.72 Customer's No.: X 7740 Cutout Operating with High Output Dynamo A standard cutout has been run on the chassis rig in the laboratory in conjunction with the present production switchbox which makes the dynamo armature contact in the ignition position and a 40/50 high output dynamo running at 1450 rpm. This is a little below the peak speed, the output starts at about 15 amperes and falls on reaching final temperature to 12. The rig was given periods of steady running of a few hours each alternating with periods during which the charge was switched on and off automatically ten or twelve times a minute. The continuous running has (Cont'd) Signed: This Sheet must be filed on completion of the work. | ||
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).