ABB RELION 670 Series Technical Manual page 239

1MRK 502 066-UUS B
PU_AG
PU_BG
PU_CG
PU_AB
PU_BC
PU_CA
ANSI11000217 V1 EN-US
Figure 108: Composition of pickup signals
Tripping conditions for the distance protection zone one are symbolically presented in figure 109.
Timer tPP=On
PHPH_FLT
Timer tPG=On
PHG_FLT
BLKTRIP
PU_A
PU_B
PU_C
ANSI11000218 V2 EN-US
Figure 109: Tripping logic for the distance protection zone
Technical manual
Release
AND
AND
AND
AND
AND
AND
AND
AND
OR
OR
OR
OR
OR
0-tPP
0
0-tPG
0
AND 0
15 ms
AND
AND
AND
Impedance protection
PHG_FLT
PU_A
PU_B
PU_C
PICKUP
OR
PHPH_FLT
ANSI11000217-1-en.vsd
OR
TRIP
TR_A
TR_B
TR_C
ANSI11000218-2-en.vsd
Section 7
233