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).
Fuse blowing and low output issues after changing to new B.2. C.J.1 type voltage regulators.
| Identifier | ExFiles\Box 60\3\ Scan320 | |
| Date | 25th January 1935 | |
| Hs{Lord Ernest Hives - Chair}/WST. 76092. K/KC/DPB/25.1.35. WST Chassis No.B.98.CR.{Mr Cra???ster / Mr Chichester} Voltage Regulators. Type B.2. C.J.1. ----------------- Up to Wednesday, the 23rd inst, there had been no complaints regarding cars and the state of their batteries in cases where we had changed over the voltage regulators to the above type. On Wednesday, however, there were two cases where trouble had been reported, but in an entirely different category to what one would expect normally, that is, low output. In the first case, B.98.CR{Mr Cra???ster / Mr Chichester}, we were informed over the telephone that an Agent was experiencing trouble with the dynamo main fuse blowing after we had changed the regulator to the new type B.2.C.J.1. He was in difficulties owing to the time at his disposal and therefore was forced to make an adjustment to the regulator to overcome this trouble. This car will come to K at the first opportunity for us to carry out an examination as to the reason for this fuse blowing. In the other case, B.78.CR{Mr Cra???ster / Mr Chichester}, the voltage regulator on this chassis was changed by us for the new type, and on test immediately "blew" the dynamo fuse. We decided to investigate this matter further, so the Foreman Electrician took some actual figures on test from the chassis' own ammeter, from which he ascertained that the amperage rose immediately to the full range of the ammeter with the new regulator, then fell, then rose again, but by "tapping" the voltage regulator when at 20-amps, the output dropped to the normal 10 or 12 amps. As we are of the opinion here that the contact points in the regulator itself are sticking, this may possibly prove to be the solution to the mystery regarding the fuse blowing. We are, therefore, in view of our discoveries returning to you the voltage regulator under -contd- | ||