Anyone have experience with a trasformer simulator? Paralleling different configurations of TR's

[BSEEDan]

I am tasked with explaining how to use this transformer simulator.

What is the purpose of this simulator? For paralleling? Phase determination? I am using 30 lag paralleling with a 30 degree leading dyn1 and dyn11 as an example. I know how to parallel these transformers (Swap A&C or B&C phase on LV and HV side).

Also can anyone expand on how to parallel with the single phase additive or subtractive transformers?

Internals are Honeywell low voltage transformers 120v input and 16volts output 10VA

 

[bacon4life]

We have a similar board to teach line workers how to connect pole mounted transformers. Several of the incorrect ways to connect them can be diagnosed with just a standard voltmeter. I think there is even a switch on the back for the instructor to swap phases to simulate incorrect field markings.