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
7.4.6 Technical data
Table 203: EF4PTOC (51N/67N) technical data
Function
Range or value Accuracy
Operate current (1-2500)% of
lBase
± 1.0% of I
n
at I < I
n
± 1.0% of I at I > I
n
Reset ratio > 95% -
Operate current for directional
comparison
(1–100)% of
lBase
± 1.0% of I
n
Timers (0.000-60.000) s ± 0.5% ±10 ms
Inverse characteristics, see
table 728, table 729 and table 730
18 curve types See table 728, table 729 and
table 730
Second harmonic restrain
operation
(5–100)% of fundamental ± 2.0% of I
n
Relay characteristic angle (-180 to 180) degrees ± 2.0 degrees
Minimum polarizing voltage (1–100)% of
VBase
± 0.5% of V
n
Minimum polarizing current (1-30)% of
IBase
±0.25 % of I
n
Real part of source Z used for
current polarization
(0.50-1000.00) W/phase -
Table continues on next page
Section 7 1MRK505222-UUS C
Current protection
420
Technical reference manual
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