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Megger AVTMTTR100 User Manual

Megger AVTMTTR100
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M
AVTMTTR100-ENG Rev 6 Nov 2015
44
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
45
YNd1
U
V
W
1U-1N
1V-1N
1W-1N
2U-2V
2V-2W
2W-2U
Neutral
accessible
on wye
winding
46
Yd1
U
V
W
1V-1W
1W-1U
1U-1V
1U-(1V+1W)
1V-(1W+1U)
1W-(1U+1V)
2U-2V
2V-2W
2W-2U
No neutral
accessible
on wye
winding
47
YNd5
U
V
W
1U-1N
1V-1N
1W-1N
2W-2U
2U-2V
2V-2W
Neutral
accessible
on wye
winding
48
Yd5
U
V
W
1V-1W
1W-1U
1U-1V
1U-(1V+1W)
1V-(1W+1U)
1W-(1U+1V)
2W-2U
2U-2V
2V-2W
No neutral
accessible
on wye
winding
49
YNd7
U
V
W
1U-1N
1V-1N
1W-1N
2V-2U
2W-2V
2U-2W
Neutral
accessible
on wye
winding
50
Yd7
U
V
W
1V-1W
1W-1U
1U-1V
1U-(1V+1W)
1V-(1W+1U)
1W-(1U+1V)
2V-2U
2W-2V
2U-2W
No neutral
accessible
on wye
winding
32U
1U
32U
5.1*1U
32U
1U
32U
5.1*1U
32U
1U
32U
5.1*1U

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Megger AVTMTTR100 Specifications

General IconGeneral
BrandMegger
ModelAVTMTTR100
CategoryTest Equipment
LanguageEnglish

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