ABB 615 Series - Differential Protection; Function Block; Identification; Line Differential Protection with In-Zone Power Transformer 87 L

4.2.8.9 Technical data
Table 422: 67YN Technical data
Characteristic
Value
Operation accuracy Depending on the frequency of the measured
voltage:
f
n
±2 Hz
±1.5% of the set value or ±0.002 × V
n
Pickup time
1)
Typically 35 ms
Reset time Typically 40 ms
Trip time accuracy ±1.0% of the set value or ±20 ms
1) Includes the delay of the signal output contact, results based on statistical distribution of 1000
measurements
4.3 Differential protection
4.3.1 Line differential protection with in-zone power transformer 87L
4.3.1.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Line differential protection with in-zone
power transformer
LNPLDF 3Id/I> 87L
4.3.1.2 Function block
87L
I_LOC_C
BLOCK
BLOCK_LS
TRIP
PICKUP
STR_LS_LOC
I_LOC_B
I_LOC_A
STR_LS_REM
I_REM_C
I_REM_B
I_REM_A
OPR_LS_LOC
OPR_LS_REM
OPR_HS_LOC
OPR_HS_REM
BLKD2H_LOC
BLKD2H_REM
ENA_MULT_HS
PROT_ACTIVE
GUID-802DA45B-DC38-44F8-8BA2-ABCCD8338C6D V1 EN
Figure 220: Function block
Section 4 1MAC059074-MB A
Protection functions
460 615 series ANSI
Technical Manual