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ABB RELION REX640 - Page 658

ABB RELION REX640
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Vector group of
the transformer
Winding 1 type Winding 2 type Phase shift Zero sequence
current
elimination
Yz11 Y z 11 Not needed
YNz11 YN z 11 (Automatic)
YNzn11 YN zn 11 LV side
Yzn11 Y zn 11 (Automatic)
Zy1 Z y 1 Not needed
Zyn1 Z yn 1 (Automatic)
ZNyn1 ZN yn 1 HV side
ZNy1 ZN y 1 (Automatic)
Zy5 Z y 5 Not needed
Zyn5 Z yn 5 (Automatic)
ZNyn5 ZN yn 5 HV side
ZNy5 ZN y 5 (Automatic)
Zy7 Z y 7 Not needed
Zyn7 Z yn 7 (Automatic)
ZNyn7 ZN yn 7 HV side
ZNy7 ZN y 7 (Automatic)
Zy11 Z y 11 Not needed
Zyn11 Z yn 11 (Automatic)
ZNyn11 ZN yn 11 HV side
ZNy11 ZN y 11 (Automatic)
Dz0 D z 0 Not needed
Dzn0 D zn 0 LV side
Dz2 D z 2 Not needed
Dzn2 D zn 2 (Automatic)
Dz4 D z 4 Not needed
Dzn4 D zn 4 (Automatic)
Dz6 D z 6 Not needed
Dzn6 D zn 6 LV side
Dz8 D z 8 Not needed
Dzn8 D zn 8 (Automatic)
Dz10 D z 10 Not needed
Dzn10 D zn 10 (Automatic)
Zd0 Z d 0 Not needed
ZNd0 ZN d 0 HV side
Zd2 Z d 2 Not needed
ZNd2 ZN d 2 (Automatic)
Zd4 Z d 4 Not needed
Table continues on the next page
Protection functions 1MRS759142 F
658 REX640
Technical Manual

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