1. (a) Sketch the load characteristics, terminal voltage/load current, of the following types of DC generator: (i) series-connected, (ii) shunt-connected and (iii) compound-connected. (b) State one purpose for which….
1. Sparking at the trailing edges of the brushes in a DC machine is usually prevented by fitting (a) copper gauze brushes (b) a compensating winding (c) a compound….
1. The generator characteristic shown in Figure 9.28 is for a (a) shunt machine (b) series machine (c) differentially compounded machine (d) cumulatively compounded machine 2.The speed of a….