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).
Confirming a test on a dynamo's protection circuit and fuse for 'Bensport' wiring.
| Identifier | ExFiles\Box 168\1\ img127 | |
| Date | 31th May 1933 | |
| Hs{Lord Ernest Hives - Chair}/Wst. c.s. WST-8611 BY/RD2/W.31.5.33. "Bensport" Wiring. This is to confirm that you will put in hand a test on a dynamo for the above chassis and re-produce the conditions of the regulator contact points sticking on contact, using a 4½ ampere fuse in the field circuit, to determine whether this gives adequate protection to cutout shunt coil, regulator shunt coil and dynamo field winding. In the event of this sizé fuse being too small and it being necessary to retain the present size of field fuse, then we should like to see the condition of the aforementioned coils after they have been subjected to the voltage of 62 mentioned in Hs{Lord Ernest Hives - Chair}/Wst2/MA.29.5.33. BY/RD. | ||