Which of the pictured motors within the split phase family of single phase induction motors represents a split phase, resistive start, induction run motor? Illustration EL-0146
• Split phase (resistance start, induction run) motor construction and appearance • How capacitor‑start and capacitor‑run motors are usually identified from the outside • Location and visibility of starting capacitors and centrifugal switches on single‑phase motors
• Look carefully at each pictured motor and identify which ones clearly show external capacitor cans on the frame or top of the motor • From your study materials, recall: does a resistive start, induction run motor normally use a capacitor, or does it rely only on different resistance in the start winding? • Once you know whether a capacitor should be present, eliminate every motor that obviously has a capacitor mounted on it, then compare the remaining choices
• Be sure you know: a resistive start, induction run motor is still a split‑phase motor but without a starting capacitor • Visually confirm which motors have cylindrical capacitor housings attached to the outside of the frame • Among the motors with no visible capacitor, consider which one best matches the typical general‑purpose split‑phase motor you’ve seen in diagrams and manuals
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