Identifying direction of rotation for a three phase motor, without applying three-phase power
You can probably operate the motor well enough to determine the rotation direction using the Steinmetz connection and a 230-volt single phase power supply. Connect your phase sequence meter for identifying the rotation sequence with respect to the power phase sequence. Here is some information on the Steinmetz connection, more can be found by searching the internet.

Here are diagrams for the Steinmetz connection with a star connected motor:



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