Function Block - ABB Relion 670 Series Technical Reference Manual

Section 6
Impedance protection
6.9.3
320
Timer tPP=enable
PUZMPP
AND
BLKFUNC
Timer tPG=enable
AND
PUZMPG
BLKTR
BLK
PU_A
PU_B
PU_C
ANSI09000887 V2 EN
Figure 166: Tripping logic for the distance protection zone

Function block

ZMRPDIS (21)
I3P* TRIP
V3P* TR_A
BLOCK TR_B
BLKZ TR_C
BLKTR RI
PHSEL BFI_A
DIRCND BFI_B
PU_C
PHPUND
ANSI08000248-1-en.vsd
ANSI08000248 V1 EN
Figure 167: ZMRPDIS (21) function block
tPP
AND
0-tPP
0
OR
tPG
0-tPG
AND
0
0
AND
15 ms
OR
AND
AND
AND
1MRK505222-UUS C
OR
TRIP
TR_A
TR_B
TR_C
ANSI09000887-2-en.vsd
Technical reference manual