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