ABB RELION REX640 - 4.6.2.11 Technical revision history; 4.7 Impedance protection; 4.7.1 Distance protection DSTPDIS (ANSI 21 P, 21 N); 4.7.1.1 Identification

Characteristic Value
± 2.0% of the set value (in range 5 Hz/s <
|df/dt| < 15 Hz/s)
Start time f< <80 ms
df/dt <120 ms
Reset time <150 ms
Operate time accuracy ±1.0% of the set value or ±30 ms
4.6.2.11 Technical revision history
Table 903: LSHDPFRQ Technical revision history
Product connectivity level Technical revision Change
PCL2 E Changed the Start value Freq
and Restore start Val steps to
0.0001 xFn
4.7 Impedance protection
4.7.1 Distance protection DSTPDIS (ANSI 21P, 21N)
4.7.1.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Distance protection DSTPDIS Z< 21P, 21N
4.7.1.2 Function block
Figure 520: Function block
Protection functions
1MRS759142 F
940 REX640
Technical Manual