Windings - Raytech mini-ATOS Instruction Manual

8.1.1 Windings

In the Windings tab (Figure 21), the most important properties of the test object, including winding
types, vector groups and the number of taps can be defined. After creating the test object, it is not
possible to make changes in the winding information.
You can select the winding type by tapping the winding connection symbol for each winding side.
The winding type for a power transformer can be from any winding type of Table 7.
Phases
3-Phases
1-Phase
90297-0.24 Instruction Manual mini-ATOS
Figure 21: Test object windings tab
Table 7: Winding types and symbols for power transformer
Type
Delta
Star with accessible neutral
Star
Zigzag with accessible neutral
Zigzag
Single-phase
Preliminary
Letter Letter
(Primary) (non-Primary)
D d
YN yn
Y y
ZN zn
Z z
S s
Symbol
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