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).
Testing procedures and reliability of condensers for chassis.
| Identifier | ExFiles\Box 34\1\ Scan072 | |
| Date | 28th July 1919 | |
| Contd. -2- EFC3/T28.7.19. with those we have ourselves built up. Until this week we have been testing condensers built up by you, by applying a voltage of 200 from the main to the condenser for half an hour, and the majority of condensers will stand up to this quite easily, although we had 3 cases of a breakdown under this treatment. You will remember that there has also been one case of a breakdown of a condenser in actual service on the car. In view of this latter breakdown we considered that such a test was not sufficiently stringent, and we therefore devised a method by which we could apply about double this voltage to the condenser. We considered and hoped that every condenser would be able to stand this treatment for half an hour; so far, however, we have only got one of the condensers made in your Department through this more stringent test, which particular condenser has been handed to you, and we believe by now, is fitted to chassis 49-GB in place of one which has given good service. We still consider that the condensers should stand this more stringent test, as there is evidence from what we have done with condensers made by other people, e.g. magneto condensers, that such will easily stand this, although we have not gone far enough, or had sufficient of these, to say this definitely at the moment. Regarding condensers on production chassis, we believe Mr. Bailey has now arranged with the G.E.C. for the supply of these, the reason being, that we do not feel Contd. | ||