ABB RET670 - Four Step Directional Negative Phase Sequence Overcurrent Protection NS4 PTOC (46 I2)

Name Values (Range) Unit Step Default Description
MultPU4 1.0 - 10.0 - 0.1 2.0 Multiplier for scaling the current setting value
for step 4
ResetTypeCrv4 Instantaneous
IEC Reset
ANSI reset
- - Instantaneous Reset curve type for step 4
tReset4 0.000 - 60.000 s 0.001 0.020 Reset time delay for step 4
HarmRestrain4 Disabled
Enabled
- - Enabled Enable block of step 4 from harmonic restrain
tPCrv4 0.005 - 3.000 - 0.001 1.000 Parameter P for customer programmable
curve for step 4
tACrv4 0.005 - 200.000 - 0.001 13.500 Parameter A for customer programmable
curve step 4
tBCrv4 0.00 - 20.00 - 0.01 0.00 Parameter B for customer programmable
curve for step 4
tCCrv4 0.1 - 10.0 - 0.1 1.0 Parameter C for customer programmable
curve step 4
tPRCrv4 0.005 - 3.000 - 0.001 0.500 Parameter PR for customer programmable
curve step 4
tTRCrv4 0.005 - 100.000 - 0.001 13.500 Parameter TR for customer programmable
curve step 4
tCRCrv4 0.1 - 10.0 - 0.1 1.0 Parameter CR for customer programmable
curve step 4
3.7.5 Four step directional negative phase sequence overcurrent
protection NS4PTOC (46I2)
Function description
IEC 61850
identification
IEC 60617 identification ANSI/IEEE C37.2
device number
Four step negative sequence
overcurrent protection
NS4PTOC
I2
4
4
alt
IEC10000053 V1 EN
46I2
3.7.5.1 Application
Four step negative sequence overcurrent protection NS4PTOC (4612) is used in
several applications in the power system. Some applications are:
Section 3 1MRK504116-UUS C
IED application
440
Application manual