ABB Relion 620 Series, Technical Manual

Page: 540 / 1224

Vector group of
the transformer Winding 1 type Winding 2 type Clock number Zro A
Elimination
ZNyn7 ZN yn Clk Num 7 HV side
ZNy7 ZN y Clk Num 7 Not needed
Zy11 Z y Clk Num 11 Not needed
Zyn11 Z yn Clk Num 11 Not needed
ZNyn11 ZN yn Clk Num 11 HV side
ZNy11 ZN y Clk Num 11 Not needed
Dz0 D z Clk Num 0 Not needed
Dzn0 D zn Clk Num 0 LV side
Dz2 D z Clk Num 2 Not needed
Dzn2 D zn Clk Num 2 Not needed
Dz4 D z Clk Num 4 Not needed
Dzn4 D zn Clk Num 4 Not needed
Dz6 D z Clk Num 6 Not needed
Dzn6 D zn Clk Num 6 LV side
Dz8 D z Clk Num 8 Not needed
Dzn8 D zn Clk Num 8 Not needed
Dz10 D z Clk Num 10 Not needed
Dzn10 D zn Clk Num 10 Not needed
Zd0 Z d Clk Num 0 Not needed
ZNd0 ZN d Clk Num 0 HV side
Zd2 Z d Clk Num 2 Not needed
ZNd2 ZN d Clk Num 2 Not needed
Zd4 Z d Clk Num 4 Not needed
ZNd4 ZN d Clk Num 4 Not needed
Zd6 Z d Clk Num 6 Not needed
ZNd6 ZN d Clk Num 6 HV side
Zd8 Z d Clk Num 8 Not needed
ZNd8 ZN d Clk Num 8 Not needed
Zd10 Z d Clk Num 10 Not needed
ZNd10 ZN d Clk Num 10 Not needed
Zz0 Z z Clk Num 0 Not needed
ZNz0 ZN z Clk Num 0 HV side
ZNzn0 ZN zn Clk Num 0 HV & LV side
Zzn0 Z zn Clk Num 0 LV side
Zz2 Z z Clk Num 2 Not needed
ZNz2 ZN z Clk Num 2 Not needed
ZNzn2 ZN zn Clk Num 2 Not needed
Table continues on the next page
Protection functions 1MRS757644 H
540 620 series
Technical Manual