A digital multimeter is set up as shown in the illustration to evaluate the single-circuit stator windings of a squirrel cage induction three-phase motor. The following readings are taken: From T1 to T2 reads "OL" ohms. From T2 to T3 reads "OL" ohms. From T3 to T1 as shown reads "1.6" ohms. What condition is indicated? Illustration EL-0219

Correct Answer: Option B — Phase A (associated with T1) and Phase C (associated with T3) are undamaged. Phase B (associated with T2) is open-circuited.

An open circuit in Phase B causes infinite resistance (OL) when measured through T1-T2 and T2-T3, while healthy continuity across T3-T1 reads normal winding resistance, pinpointing the open winding fault.