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 specifications for a condenser, including charge holding, capacity, and sparking tests.
| Identifier | ExFiles\Box 52\3\ Scan072 | |
| Date | 25th October 1922 guessed | |
| X4430 -2- Contd. (7) The capability of holding a static charge should again be verified. (8) The condenser should again be tested for final capacity, when the milli-amperes taken at 200 volts 50.7 for a condenser temperature of 180C shall lie between the limits 17.5 and 21.0. For other temperatures, the limits must be increased or reduced proportionally at the rate of 1.5% per °C. These allowable limits should also be increased or reduced proportionally if the voltage is not exactly 200. Note:- Corresponding capacity limits at 18° .275 to .325 mf. (9) The condensers should be given a short run on an otherwise standard distributor and sparking rig, with a view to observing the degree of sparking at the contact points. A condenser with a faulty connection will invariably show bad sparking. EFC. {E. Fowler Clarke - Electrical Engineer} | ||