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).
Specifications and settings for LR7 regulators mounted on RF50 boxes, referencing the B2CJ-1 regulator.
| Identifier | ExFiles\Box 166\2\ img113 | |
| Date | 23th September 1937 guessed | |
| COPY. For Messrs Rolls-Royce. 2 - LR{Mr Ellor}7 Regulators mounted on RF50 Boxes, ENS 1202. These have been sent to fulfil the requirements of Messrs Rolls-Royce in their specification for the B2CJ-1 regulator, viz. Output, cold, through complete series winding. (1) at 13 volts, 14 - 16.5 amps. (2) at 15 " 1 - 7.5 " Output, Hot, through complete series winding. (1) at 13 volts, 15 - 18.5 amps. (2) at 15 " 3.5 - 10.5 amps. The actual settings of the two regulators are as follows :- Open circuit voltage, cold, at 1300 R.P.M., on the Rolls-Royce 4-pole dynamo, 15.8 volts. Output, at 13 volts, through complete series winding. 15.2 amps. cold 18.5 " hot. Output, at 15 volts, through complete series winding, 4 amps, cold. It should be noted that when setting the open circuit voltage of the regulator, 1300 R.P.M. on the Rolls-Royce dynamo corresponds to 1450 on our own C45PV 12 volt dynamo, which is our standard condition of setting. Form No. LAB/1. | ||