Name Type Description
PU_ST4 BOOLEAN Common pickup signal from step4
PU_A BOOLEAN Pickup signal from phase A
PU_B BOOLEAN Pickup signal from phase B
PU_C BOOLEAN Pickup signal from phase C
PU_ST1_A BOOLEAN Pickup signal from step1 phase A
PU_ST1_B BOOLEAN Pickup signal from step1 phase B
PU_ST1_C BOOLEAN Pickup signal from step1 phase C
PU_ST2_A BOOLEAN Pickup signal from step2 phase A
PU_ST2_B BOOLEAN Pickup signal from step2 phase B
PU_ST2_C BOOLEAN Pickup signal from step2 phase C
PU_ST3_A BOOLEAN Pickup signal from step3 phase A
PU_ST3_B BOOLEAN Pickup signal from step3 phase B
PU_ST3_C BOOLEAN Pickup signal from step3 phase C
PU_ST4_A BOOLEAN Pickup signal from step4 phase A
PU_ST4_B BOOLEAN Pickup signal from step4 phase B
PU_ST4_C BOOLEAN Pickup signal from step4 phase C
2NDHARM BOOLEAN Block from second harmonic detection
DIR_A INTEGER Direction for phase A
DIR_B INTEGER Direction for phase B
DIR_C INTEGER Direction for phase C
7.2.5 Setting parameters
Table 191: OC4PTOC (51_67) Group settings (basic)
Name
Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable Operation
IBase 1 - 99999 A 1 3000 Base current
Vbase 0.05 - 2000.00 kV 0.05 400.00 Base voltage
AngleRCA 40 - 65 Deg 1 55 Relay characteristic angle (RCA)
AngleROA 40 - 89 Deg 1 80 Relay operation angle (ROA)
NumPhSel 1 out of 3
2 out of 3
3 out of 3
- - 1 out of 3 Number of phases required for phase
selection (1 of 3, 2 of 3, 3 of 3)
DirModeSel1 Disabled
Non-directional
Forward
Reverse
- - Non-directional Directional mode of step 1 (Disabled, Nondir,
Forward, Reverse)
Table continues on next page
Section 7 1MRK505222-UUS C
Current protection
390
Technical reference manual
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