Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1109
rated. The separate circuit dynamohas either two separate armatures in the field space, or itmay have two sets of coils. Whichever it is, one armatureor coil set is used to excite the field, and the other to sup-ply the current to the circuit. Fig. 460 shows such a dyna-mo with two commutators, one… … Fig. 461 have the task of starting a new shunt dynamo, one thathas never generated any current. Our first step is to open Operation of Dynamos 1075 the main switch and turn the rheostat or field resistancebox so that all the resistance is in circuit. A rheostat con-sists of a number of resistances,…
