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 for a distributor high tension rotor, including insulation and clearance checks.
| Identifier | ExFiles\Box 70\4\ scan0113 | |
| Date | 15th October 1926 guessed | |
| -3- Contd. just making and just breaking contact, this indicating absence of friction at the pivot. After this test the spring clamp securing screw is restored. (3) The distributor high tension rotor should be placed on a rig, made to receive it, in such a way that the secondary voltage of a coil undergoing its open circuit test shall be applied between the rotor blade and the inside of its bakelite moulding. This, provided the coil satisfactorily passes the test, confirms that the rotor insulation is sound. (4) After the governor test (see next page for 20 HP. case) the H.T. rotor shall be examined for registry with the stationary H.T. points, including comparison of the radial clearances with the limits given on the drawing. The distance measured from the leading corner of the rotor to the centre of the mark where the sparks have passed, must lie between the limits .175" to .050". EFC. | ||