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).
Disadvantages of a circuit diagram regarding fuses and seeking advice on a better arrangement.
| Identifier | WestWitteringFiles\E\August1920\ Scan16 | |
| Date | 25th August 1920 | |
| Contd. -2- EFC3/T25.8.20. taking a much larger fusing current, then Fig.1 is dangerous if the main fuse is at the same time incorrectly replaced. This would occur as previously explained if the two fuse holders are interchangeable, which apparently they should not be. Fig.2 would be safe against burning out the dynamo in either of these contingencies. (5) A second disadvantage of Fig.2 is that with dynamo stopped and sticking cut-out, although the battery armature current is (or should be) cut off by the fuse, the field of the dynamo remains on the battery and the battery will, if left on, be discharged in time, though at a slower rate. Taking all these points into consideration, I should very much like to have your view as to which is the better alround arrangement. EFC. E.H. 5387 (100 L) (2' C. 642 18-5-50) e 5812 | ||