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).
List of test questions and procedures for a 50 Volt motor.
| Identifier | ExFiles\Box 34\4\ Scan186 | |
| Date | 8th October 1929 | |
| X2048. 8.10.29. 50 VOLT MOTOR. Is the armature insulation O.K? Is the armature drop test O.K? Is the field insulation O.K? Is the field polarity O.K? Is the field loading O.K. at 50 volts on field only? Are the brushes approximately on neutral points? What armature speed puts up 50 volts across brushes with normal separate field excitation? What current just only turns armature with normal field excitation? What are armature current and speed at 50 volts across brushes and field, i.e. plain shunt? Load up with brake keeping supplied P.D. at 50 until load is considered the maximum desirable. what is the armature current? What static torque does this value of armature current produce in normal field? | ||