M
AVTMMTO210 Rev 7 Sept 2013
28
DUAL-WINDING TEST
This procedure describes the testing of both windings (high and low) on a single-
phase transformer at the same time.
Figure 3: Dual-Winding Test
F
WARNING
Do not disconnect leads until all indicators are OFF!
NOTES: It should be carefully noted that the jumper in Figure 3 be connected to
opposite polarities of transformer to reduce transformer core saturation
time.
If the resistance between the 2 windings is greater than factor of 10, you
may get a more accurate reading by testing the windings separately.
PROCEDURE:
1. Connect line cord to unit and plug into line socket.
2. Connect Safety GND cord from Top Panel to Transformer GND.
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