ABB RELION 670 Series Product Manual page 9

Transformer protection RET670 2.1 IEC
Description of configuration A10
W1_QB1 W1_QB2
W1_QA1
W3
W3_QA1
WA1
W2_QA1
WA1
Other Functions available from the function library
87 Id>
HZ PDIF
MET UN
V MSQI
Optional Functions
46I2 4(I2>)
NS4 PTOC
S SCBR
IEC07000191 V4 EN-US
Figure 5. Configuration diagram for configuration A10
ABB
WA1
WA2
1 → 0
94
SMP PTRC
W1_CT
50BF 3I>BF
CC RBRF
W1
W2
1 → 0
94
SMP PTRC
W3_CT
50BF 3I>BF
CC RBRF
W2_CT
50BF 3I>BF
CC RBRF
1 → 0
94
W2_VT
SMP PTRC
MET UN
W2_WA1_VT
VN MMXU
87N IdN/I 46 Iub> 67N IN>
REF PDIF BRC PTOC SDE PSDE
MET P/Q 63 71
CV MMXN S SIMG S SIML
59N 2(U0>)
27 2(3U<) 59 2(3U>)
ROV2 PTOV
UV2 PTUV OV2 PTOV
RET670 A10 – Transformer backup protection
DFR/SER DR
DRP RDRE
51 4(3I>) 50 3I>> 50N IN>>
OC4 PTOC PH PIOC EF PIOC
MET I
C MMXU
51 4(3I>) 51N 4(IN>) MET I
OC4 PTOC EF4 PTOC C MMXU
51 3I> 51N 4(IN>) MET I
OC4 PTOC EF4 PTOC C MMXU
25 SC/VC MET UN
SES RSYN VN MMXU
27 3U< 60 Ud> MET W/Varh
LOV PTUV VDC PTOV ETP MMTR
3 Control
Q CBAY
81 df/dt<>
81 f< 81 f>
SA PFRC
SA PTUF SA PTOF
1MRK 504 155-BEN F
GUID-FFF089C9-987F-4D6B-A3C5-B0A7B480AE21 v5
12AI (9I+3U)
51N 4(IN>)
EF4 PTOC
MET Isqi
C MSQI
MET Isqi
C MSQI
MET Isqi
C MSQI
θ>
49
TR PTTR
MET U
V MMXU
60 Ud>
VD SPVC
IEC07000191-3-en.vsd
9