The continuity between the coils are measured by forming three groups marked by sequence numbers. For the polarization of the coils of the three-phase motor, connect the four ends or ends with the five. Terminals one and two must be connected to the power supply. To connect a multimeter, also known as an alternating voltage scale, to terminals three and six, so that the voltage and its value can be measured. The ends or ends one and four must be inverted.
In the sequence it is important that the voltage measurement at terminals three and six, if the first measured voltage value is less than the second, means that coil number one, is correctly polarized. If the first measured value of voltage is greater than the second one, coil one is with the polarization inverted, being necessary to change the number four with the one in the marking of the coils.
Three-phase motors 9274-5236 14MGT-3304-37 rely on certain sequences of terminal numbers to make the necessary connections for their good performance. When these engines are purchased, either from dealers or from the factory, they have an identification. Over time, this important identification of the product ends up being erased, released or lost.