Monitored Data; Transformer Differential Protection, Three Winding T3Wpdif; Identification; Function Block - ABB RET650 Technical Manual

1MRK 504 135-UEN A
6.1.2.5
6.1.3
6.1.3.1
6.1.3.2
Technical manual

Monitored data

Table 28: T2WPDIF Monitored data
Name Type
IDL1MAG REAL
IDL2MAG REAL
IDL3MAG REAL
IBIAS REAL
IDNSMAG REAL

Transformer differential protection, three winding T3WPDIF

Identification

Function description
Transformer differential protection,
three-winding

Function block

T3WPDIF
I3PW1CT1* TRIP
I3PW2CT1* TRIPRES
I3PW3CT1* TRIPUNRE
BLOCK TRNSUNR
TRNSSENS
START
STL1
STL2
STL3
BLK2H
BLK5H
BLKWAV
IDALARM
IDL1MAG
IDL2MAG
IDL3MAG
IBIAS
IDNSMAG
IEC09000269_1_en.vsd
IEC09000269 V1 EN
Figure 31: T3WPDIF function block
Differential protection
Values (Range) Unit
- A
- A
- A
- A
- A
IEC 61850 IEC 60617
identification identification
T3WPDIF
3Id/I
SYMBOL-BB V1 EN
Section 6
Description
Magnitude of
fundamental frequency
differential current, phase
L1
Magnitude of
fundamental frequency
differential current, phase
L2
Magnitude of
fundamental frequency
differential current, phase
L3
Magnitude of the bias
current, which is common
to all phases
Magnitude of the
negative sequence
differential current
ANSI/IEEE C37.2
device number
87T
83