Technical Data - ABB RELION Series Technical Manual

Section 4
Protection functions
4.5.1.9
4.5.1.10
4.5.2
4.5.2.1
4.5.2.2
442

Technical data

Table 465: FRPFRQ Technical data
Characteristic
Operation accuracy f>/f<
df/dt
Start time f>/f<
df/dt
Reset time
Operate time accuracy
Technical revision history
Table 466: FRPFRQ Technical revision history
Technical revision
B
C
D
Load-shedding and restoration LSHDPFRQ
Identification
Function description
Load-shedding and restoration
Function block
GUID-1B46D13E-4F26-4CFA-9655-E979E0E05D67 V2 EN
Figure 224: Function block
Value
±5 mHz
±50 mHz/s (in range |df/dt| <5 Hz/s)
±2.0% of the set value (in range 5 Hz/s < |df/dt| <
15 Hz/s)
<80 ms
<120 ms
<150 ms
±1.0% of the set value or ±30 ms
Change
Step value changed from 0.001 to 0.0001 for the
Start value Freq> and Start value Freq< settings.
df/dt setting step changed from 0.005 ×Fn /s to
0.0025 ×Fn /s.
Internal improvement.
IEC 61850 IEC 60617
identification identification
LSHDPFRQ UFLS/R
1MRS758755 A
ANSI/IEEE C37.2
device number
81LSH
REC615 and RER615
Technical Manual