ABB RED650 - Logic Diagram

14.1.6.1 Logic diagram
M12258-7 v6
IEC05000517=4=en=Original..vsdx
TRIPALLBLOCK
AND
TRIN L1
t
tTripMin
OR
TRINL2
TRIN L3
TRIN
1PTREF
1PTRZ
OR
IEC05000517 V4 EN-US
Figure 216: Three-phase front logic — simplified logic diagram
IEC10000056=4=en=Or iginal.vsdx
L1TRIP
TRIN
OR
1PTR EF
t
tWaitForPHS
OR
TRINL1
AND
PSL1
OR
OR
AND
AND
PSL2
PSL3
TRINL2
TRINL3
L2TRIP
L3TRIP
OR
OR
OR
-LOOP
AND
AND
OR
1PTRZ
-LOOP
OR
AND
AND
IEC10000056 V4 EN-US
Figure 217: Phase segregated front logic
Section 14 1MRK 505 394-UEN A
Logic
438 Line differential protection RED650 2.2 IEC
Technical manual