Megger MTO210 - Figure 5: Reading Obtained Is between Pairs of Terminals, Resistance of a and B Windings; Figure 6: Reading Is between Pairs of Terminals. Resistance of a in Parallel with B+C Windings

M
AVTMMTO210 Rev 7 Sept 2013
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2. Three-Phase Wye Configured Winding, No Neutral Brought Out
Figure 5: Reading obtained is between pairs of terminals, Resistance of A and B Windings
Use the above diagram in conjunction with procedure "Single-Phase
Transformer Test".
3. Three-Phase, Delta Configured Winding
Figure 6: Reading is between pairs of terminals. Resistance of A in parallel with B+C Windings
Use the diagram in Figure 6 in conjunction with procedure "Single-Phase
Transformer Test".
X3
X1 X2
+
-
I
+
-
V1
+
-
V2