Dynamo-Electricity Machinery

Silvanus P. Thompson (1851-1916) was a physicist and electrical engineer. A professor by the age of 27, he taught at University College, Bristol, and the City and Guilds Finsbury Technical College in London, and was a leading expert on the newly emerging subject of electrical lighting. This work, first published in 1884, is considered a classic in the field. In this third edition (1888), Thompson explains that he has updated much of the work, and made an important amendment in Chapter XIV about the introduction of magnetic circuits into theoretical arguments about energy production. The book begins with an explanation of how dynamos turn mechanical power into electricity, and moves on to discuss some historical background and theoretical aspects before giving detailed descriptions and illustrations of the many types of dynamo. It is an important source document for the field of electrical engineering at the end of the nineteenth century.Preface; 1. Introductory. Historical notes. Electric units; 2. Physical theory of dynamo-electric machines; 3. Organs of dynamo-electric machines; 4. On the induction of currents in armatures, and the distribution of potentials around the collector; 5. Reactions in the armature and magnetic field; 6. Government of dynamos; 7. Continuous-current machines: closed coil ring armature dynamos; 8. Continuous-current machines: closed coil drum armature dynamos; 9. Continuous-current machines: closed coil disk armature dynamos; 10. Continuous-current machines: open coil dynamos; 11. Continuous-current machines: unipolar dynamos; 12. Alternate current machines; 13. Dynamos for electroplating and electro-metallurgy; 14. Field-magnets and magnetism; 15. Elementary theory of the dynamo; 16. The magneto-machine and the separately-excited machine: efficiency and capacity; 17. The series dynamo and its characteristic; 18. The shunt dynamo and its characteristic; 19. Further equations of the dynamo; 20. Constant-potential dynamos: theory of self-regulation; 21. Constant-current dynamos; 22. Further use of graphic constructions; 23. Theory of alternate-current dynamos; 24. On coupling two or more dynamos in one circuit; 25. Transformers; 26. The dynamo as motor; 27. Elementary theory of electric motive power; 28. Reaction between armature and field-magnets in a motor; 29. Special forms of motor; 30. Theory of electric motors; 31. Government of motors; 32. Testing dynamos and motors; Appendices; Index.