Difference between revisions of "Phase-to-phase"

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Revision as of 23:16, 23 August 2013

Different wiring schemes for 3 phase AC & BLDC motors. A,B and C are the wires coming out of motor and the coils are located inside the motor stator.

Phase-to-phase means a measurement between any of the two winding wires coming out of 3 phase AC/BLDC motor while the third wire is unconnected. For example, measuring phase-to-phase resistance may be done by measuring the resistance by connecting a resistance meter to leads A and B while C is not connected.

In brush DC motors phase-to-phase means measurement between the armature windings (+ and -).