Vanguard ATRT-03_03B - Manual (Page 62)

REV 7 ATRT-03, ATRT-03A, AND ATRT-03B USER’S MANUAL
56
3.6.6. Testing a Three Phase Transformer Using Auto Detect Mode
The ATRT-03 provides a convenient Auto Detect mode that can automatically detect 130
specific vector groups for different transformer types defined by ANSI, CEI/IEC, and Australian
standards. The transformer configurations supported are listed in Appendix B, C, and D. The
ATRT-03 can detect the vector diagrams for Delta-Delta, Wye-Wye, Delta-Wye, and Wye-Delta
transformer types. Follow the steps below to test a three phase transformer using the auto
detect mode:
a. Start from the “START-UP” menu:
Press the [4] key (DIAG).
b. The following screen will be displayed:
Press the
[3]
key (AUTO-DETECT XFMR).
c. The following screen will be displayed:
Select a supported three phase transformer type by pressing the corresponding numeric
key on the keypad (
[1] , [2] , [3] , or [4] ). For this example, we will perform a Y-dT test
(option 2).
d. The following screen will be displayed:
Press the [START] key.
Y-dT AUTO DETECT
“START” TO INITIATE
ENTER XFMR TYPE:
1.dT-Y 2.Y-dT
3.Y-Y 4.dT-dT
1.CABLE TEST
2.VERIFICATION TEST
3.AUTO-DETECT XFMR
1.TEST XFMR 08/23/10
2.SETUP 08:25:15
3.CALCULATOR
4.DIAG 5.QUICK TST