ABB RED650 - Page 141

ZML1Zx
NDZx
PHSL1
OR
ZML2Zx
PHSL2
ZML3Zx
PHSL3
ZML1L2Zx
PHSL1L2
ZML2L3Zx
PHSL2L3
ZML3L1Zx
PHSL3L1
OR
DIRL1Zx
AND
DIRL2Zx
AND
AND
OR
AND
AND
AND
DIRL3Zx
DIRL1L2Zx
DIRL2L3Zx
DIRL3L1Zx
L1Zx
PEZx
L2Zx
PPZx
OR
OR
OR
AND
AND
AND
AND
AND
AND
Integer
to Bool
L1N
L2N
L3N
L1L2
L2L3
L1L3
RELCNDZx
IEC12000140-2-en.vsdx
L3Zx
IEC12000140 V2 EN-US
Figure 55: Intermediate logic
1MRK 505 394-UEN A Section 7
Impedance protection
Line differential protection RED650 2.2 IEC 135
Technical manual