Connecting to the Transformer
AVTMTTR330 Rev 3 March 2010
13
higher numbered terminal of the high-voltage winding. Similarly, X1 and X2
should be connected to the low-voltage winding.
Test lead markings for the ANSI, CEI/IEC, and Australian standards are as
shown in Table 4-1.
Table 4-1. Test Lead Markings for Single-Phase Transformers
Test Lead Marking
Transformer
Heavy-Duty
Clamp
Test Lead
ANSI CEI/IEC Australian Terminal
Voltage
Boot Color
Color Band
H1 1
U
A
2
High
Red Red
H2 1
V
A
1
High
Red
Yellow
X1 2
U
a
2
Low Black
Red
X2 2
V
a
1
Low Black
Yellow
Figure 4-3. Setup for Testing Single-Phase, Type A (Straight Design) Step Voltage Regulator
