Vanguard ATRT-03_03B S2 - Manual (Page 60)

ATRT-03 S2, ATRT-03A S2, AND ATRT-03B S2 USER’S MANUAL REV 2
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The ATRT-03 S2 will start testing the transformer configurations starting with YNd1. If
the transformer is not a type YNd1, it will continue to test for the next type (YNd3,
YNd5, etc.) until the transformer type has been determined. The screen will be updated
as shown below to indicate which configuration is currently being tested for:
Once the transformer type has been determined, the unit will start performing the test.
h. The screen will be updated with the Phase A test results as shown:
Testing will continue, and the screen will be updated with the Phase B test results as
shown:
TEST RESULTS:
RATIO
m
A %DIFF
A +10.057 0.8 0.46
B +10.046 0.7 0.34
XFMR TYPE: YN d1
TEST RESULTS:
RATIO
m
A %DIFF
A +10.057 0.8 0.46
XFMR TYPE: YN d1
YN d AUTO DETECT
TESTING YN d3