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Megger AVTMTTR100 User Manual

Megger AVTMTTR100
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M
AVTMTTR100-ENG Rev 6 Nov 2015
38
Table 5-3. CEI/IEC 76-1:2011 Transformer Winding Phase Relationship
Copyright 2009 Megger
Winding Connection Winding Tested
Diag
No.
IEC
Vector
Group
High-Voltage
Winding (U1)
Low-Voltage
Winding (U2)
Phase
Tested
Winding
Shorted
By TTR
High-
Voltage
Winding
Low-
Voltage
Winding
Measured
Turn Ratio
Remarks
9
Dyn1
U
V
W
1U-1V
1V-1W
1W-1U
2N-2V
2N-2W
2N-2U
Neutral
accessible
on wye
winding
10
Dy1
U
V
W
1V-1W
1W-1U
1U-1V
1U-1V
1V-1W
1W-1U
2W-2V
2U-2W
2V-2U
No neutral
accessible
on wye
winding
11
Dyn5
U
V
W
1U-1V
1V-1W
1W-1U
2N-2U
2N-2V
2N-2W
Neutral
accessible
on wye
winding
12
Dy5
U
V
W
1V-1W
1W-1U
1U-1V
1U-1V
1V-1W
1W-1U
2V-2U
2W-2V
2U-2W
No neutral
accessible
on wye
winding
13
Dyn7
U
V
W
1U-1V
1V-1W
1W-1U
2V-2N
2W-2N
2U-2N
Neutral
accessible
on wye
winding
14
Dy7
U
V
W
1V-1W
1W-1U
1U-1V
1U-1V
1V-1W
1W-1U
DH1109
2V-2W
2W-2U
2U-2V
No neutral
accessible
on wye
winding
U1
U2
3
U1
U2
3
U1
U2
3
U1
U2
3
U1
U2
3
U1
U2
3

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Megger AVTMTTR100 Specifications

General IconGeneral
BrandMegger
ModelAVTMTTR100
CategoryTest Equipment
LanguageEnglish

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