Insulation Resistance On Motors - AEMC 6503 User Manual

4.7 Insulation Resistance on Motors
Figure 4-8 shows reading the resistance to ground of a three-phase
motor winding. Since the three-phase motors are internally con-
nected, it is only necessary to connect one lead to the motor lead
and the other lead to the motor frame as shown.
Figure 4-8
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