Color Plates
Plate 2.1 Emerson – Control Techniques Unidrive M700 industrial a.c. drives. These three are from the lower end of the range of seven that extends to 315 kW. The right hand unit is 4 kW/5 HP (380 mm high), while the left hand unit is 45 kW/60 HP. (Courtesy of Emerson – Control Techniques)
Plate 3.1 Cutaway view of 4-pole d.c. motor. The skewed armature windings on the rotor are connected at the right-hand-end via risers to the commutator segments. There are four sets of brushes, and each brush arm holds four brush-boxes. The sectioned ...
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