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).
Dynamo fuse information and cutout specifications.
| Identifier | ExFiles\Box 65\2\ scan0075 | |
| Date | 23th February 1925 | |
| X 7/40 -12- Contd. Instruction Book Matter 23.2.25 The dynamo cannot be excited and/or connected to the system if this fuse is removed or melted. Special care should be taken that all fuses are gripped firmly in their holders, as a loose contact may in itself cause the fuse to melt or prevent the dynamo from exciting. Be certain particularly that the emergency fuse is in order. Particulars of Cutout. No. of turns of shunt winding 2,800. 36 SWG (.0076) Resistance of shunt winding at 45°C 92.0 ohms. No. of turns of series winding 44 15 SWG (.072") Resistance of series winding at 45°C .02 ohm. Contacts of gold-silver alloy. Production specification of inspection, adjustment and test of distribution board and cutout attached. Contd. | ||