ABB RELION RET670 - Page 88

A
IA
IB
IC
B C
Protected Object
IED
C
T
6
0
0
/5
in
D
e
lta
D
A
B
C
o
n
n
e
cte
d
IA-IB
IB-IC
IC-IA
1
2
3
4
ANSI11000027-2-en.vsd
SMAI_20
ANSI11000027 V2 EN-US
Figure 17: Delta DAB connected three-phase CT set
Section 4 1MRK 504 163-UUS A
Analog inputs
82 Transformer protection RET670 2.2 ANSI
Application manual