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).
Capacity temperature tests of Goshawk condensers.
| Identifier | ExFiles\Box 52\3\ Scan152 | |
| Date | 4th December 1923 | |
| R.R. 400A (40 H) (SL 42 12-7-23). J.H.,D. {John DeLooze - Company Secretary} X4430 Expt. No. 4430. REF: EFC {E. Fowler Clarke - Electrical Engineer} 2/T4.12.23. EXPERIMENTAL REPORT. To R & E. {Mr Elliott - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} c. CJ. & PN. {Mr Northey} c. RY. EP. {G. Eric Platford - Chief Quality Engineer} DA. {Bernard Day - Chassis Design} X.4430 - CAPACITY TEMPERATURE TESTS OF GOSHAWK CONDENSERS. Further to our EFC {E. Fowler Clarke - Electrical Engineer} 3/T29.10.23, herewith please receive copy of my assistant's report on the effect of lower temperatures than normal atmospheric on paper dielectric condensers. It was thought that maintaining the condenser at a low temperature would, as previously explained, lower its capacity temperature curve, all the condensers having previously been through heating tests have up bodily raised their capacity-temperature curve. This effect, however, has not been observed - probably the freezing temperature to which the condensers were subjected was not sufficiently low. It will be noted, however, that the capacity at the lower atmospheric temperature is considerably less than at normal temperature, the extent of the reduction being approximately the same as previously observed for rising temperature, namely, about 1.5% per oC. EFC. {E. Fowler Clarke - Electrical Engineer} P.C.4. att. | ||