RET650 A07 – OLTC Control for 1 or 2 Transformers 10AI (6I+4U)
TR PTTR
49
Ith
EF4 PTOC
51N/67N
IN>
CV MMXN
Meter.
T1
OC4 PTOC
50/51
3I>
ETP MMTR
Meter.
ROV PTOV
59N
3U0>
T2
TRx ATCC
90
U
UV2 PTOV
27
U<
OV2 PTOV
59
U>
TR PTTR
49
Ith
EF4 PTOC
51N/67N
IN>
CV MMXN
Meter.
OC4 PTOC
50/51
3I>
ETP MMTR
Meter.
ROV2 PTOV
59N
3Uo>
TR8 ATCC
90
U
UV2 PTUV
27
U<
OV2 PTOV
59
U>
T1
T2
Y
Y
Ø
Y
Y
Ø
TCM YLTC
84
TCM YLTC
84
TCS SCBR
Cond
TCS SCBR
Cond
SPVN ZBAT
Cond
Other configured functions
DRP RDRE
Mont.
T1 Data:
20 MVA
110±11*1.5% / 21 kV
105 / 550 A
YNd5
X
T
=11 %
T2 Data:
20 MVA
110±11*1.5% / 21 kV
105 / 550 A
YNd5
X
T
=11 %
20 kV Bus #1
20 kV Bus #2
IEC61850
ANSI
IEC
Function Enabled
in Settings
IEC61850
ANSI
IEC
Function Disabled
in Settings
600/1
20kV/100V
600/1
20kV/100V
W2
W2
IEC09000647-4-en.vsd
IEC09000647 V4 EN
Figure 3.
A typical tap changer control application for one or two transformers
Transformer protection RET650
1MRK 504 137-BEN B
Product version: 1.3
6
ABB
