Woundrotor Induction Motors

Liquid Rheostat Controls This form of drive consists primarily of a full-voltage, non-reversing (FVNR) starter, a wound-rotor induction motor, and a liquid rheostat, all of which integrate into a configuration as illustrated in Figure 4. The FVNR starter switches power to and from the motor stator as well as provides generally accepted protection to

FIGURE 2 Torque versus speed for ac, adjustable-voltage drive (General Electric)

FIGURE 3 Availability of ac adjustable-voltage drives

FIGURE 2 Torque versus speed for ac, adjustable-voltage drive (General Electric)

FIGURE 3 Availability of ac adjustable-voltage drives

TABLE 1 Alternating-current adjustable-voltage drive data
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