ABB REG316 4 Series - Page 87

REG 316*4 1MRB520049-Uen / Rev. F ABB Switzerland Ltd
3-49
Three-winding transformer:
Compensation matrix winding 1
Compensation matrix winding 2
X
X X
Compensation matrix winding 3
s3
s2
y0 y6 d1 d5 d7 d11 z1 z5 z7 z11
y
0 EEE EEF EE
A
CCB EEB CC
A
EEG CCH EEH CCG
y6 EFE EFF EFA CDB EFB CDA EFG CDH EFH CDG
d1 EAE EAF EAA COB EAB COA EAG COH EAH COG
d5 CBC CBD CBO CBB CBN CBA CBK CBH CBJ CBG
d7 EBE EBF EBA CNB EBB CNA EBG CNH EBH CNG
d11 CAC CAD CAO CAB CAN CAA CAK CAH CAJ CAG
z1 EGE EGF EGA CKB EGB CKA EGG CKH EGH CKG
z5 CHC HD CHO CHB CHN CHA CHK CHH CHJ CHG
z7 EHE EHF EHA CJB EHB CJA EHG CJH EHH CJG
z11 CGC CGD CGO CGB CGN CGA CGK CGH CGJ CGG
Table 3.5.1.2 Summary of the compensation matrices for a
three-winding transformer with a star connection
on winding 1
b) Delta connection on winding 1
Applies for two and three-winding transformers:
Group Comp. matrix Comp. matrix
Winding 1 Winding 2 (and 3)
Dy1 A C
Dy5 A F
Dy7 A D
Dy11 A E
Dd0 A A
Dd6 A B
Dz0 A G
Dz2 A K
Dz4 A L
Dz6 A H
Dz8 A J
Dz10 A M