ABB SPAD 330 C - Vector Group Matching Tables; HV Star Connected Matching

6
Vector group
matching
Table 1. Matching of the power transformer
vector group, when the HV side of the power
transformer is star connected.
1 2 3 4 5 6 I II
(2
(3
Check-
sum (
1
0 0 0 0 0 0 0 Yy6 Yy0 Yy0 Yy0
1 0 0 0 0 0 1 YNd7 YNd1 Yd1 Yy0
0 1 0 0 0 0 2 YNd11 YNd5 Yd5 Yy0
1 1 0 0 0 0 3 Yy0 Yy6 Yy6 Yy0
0 0 1 0 0 0 4 YNd1 YNd7 Yd7 Yy0
1 0 1 0 0 0 5 YNd5 YNd11 Yd11 Yy0
0 1 1 0 0 0 6 Yd5 Yd11 Yy0 Yd1
1 1 1 0 0 0 7 YNyn6 YNyn0 Yd1 Yd1
0 0 0 1 0 0 8 YNyn10 YNyn4 Yd5 Yd1
1 0 0 1 0 0 9 Yd11 Yd5 Yy6 Yd1
0 1 0 1 0 0 10 YNyn0 YNyn6 Yd7 Yd1
1 1 0 1 0 0 11 YNyn4 YNyn10 Yd11 Yd1
0 0 1 1 0 0 12 Yd1 Yd7 Yy0 Yd5
1 0 1 1 0 0 13 YNyn2 YNyn8 Yd1 Yd5
0 1 1 1 0 0 14 YNyn6 YNyn0 Yd5 Yd5
1 1 1 1 0 0 15 Yd7 Yd1 Yy6 Yd5
0 0 0 0 1 0 16 YNyn8 YNyn2 Yd7 Yd5
1 0 0 0 1 0 17 YNyn0 YNyn6 Yd11 Yd5
0 1 0 0 1 0 18 Yy0 Yy6 Yy0 Yy6
1 1 0 0 1 0 19 YNd1 YNd7 Yd1 Yy6
0 0 1 0 1 0 20 YNd5 YNd11 Yd5 Yy6
1 0 1 0 1 0 21 Yy6 Yy0 Yy6 Yy6
0 1 1 0 1 0 22 YNd7 YNd1 Yd7 Yy6
1 1 1 0 1 0 23 YNd11 YNd5 Yd11 Yy6
0 0 0 1 1 0 24 Yd11 Yd5 Yy0 Yd7
1 0 0 1 1 0 25 YNyn0 YNyn6 Yd1 Yd7
0 1 0 1 1 0 26 YNyn4 YNyn10 Yd5 Yd7
1 1 0 1 1 0 27 Yd5 Yd11 Yy6 Yd7
0 0 1 1 1 0 28 YNyn6 YNyn0 Yd7 Yd7
1 0 1 1 1 0 29 YNyn10 YNyn4 Yd11 Yd7
0 1 1 1 1 0 30 Yd7 Yd1 Yy0 Yd11
1 1 1 1 1 0 31 YNyn8 YNyn2 Yd1 Yd11
0 0 0 0 0 1 32 YNyn0 YNyn6 Yd5 Yd11
1 0 0 0 0 1 33 Yd1 Yd7 Yy6 Yd11
0 1 0 0 0 1 34 YNyn2 YNyn8 Yd7 Yd11
1 1 0 0 0 1 35 YNyn6 YNyn0 Yd11 Yd11
Power transformer
vector group
Switchgroup SG1
Relay connection
group
LV sideHV side
1) When comparing the checksum displayed by the relay with the checksum of switches 1…6
the weighting factors of switch 7 and 8 must be added to the latter checksum.
2) I refers to the basic coupling I of the current transformers, i.e. inside OR outside earthings,
c.f. application examples 1 and 3 of the description “Biased differential relay SPAD 330 C,
34 SPAD 4 EN 1”
3) Il refers to the basic coupling II of the current transformers, i.e. inside AND outside earthings,
c.f. application example 2 of the description “Biased differential relay SPAD 330 C,
34 SPAD 4 EN 1”