ABB RELION REX640 Technical Manual page 641

Protection and control
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1MRS759142 F
Parameter
Values (Range)
3=No validity
EF validity Min Curr 0.005...0.200
Ena cyclic reset
0=Disable
1=Enable
Intr EF reset time
40...60000
Table 641: IFPTOC Non group settings (Basic)
Parameter
Values (Range)
Operation
1=on
5=off
Operation principle 1=EF current based
2=Touch voltage
based
Enable harmonics
0=Disable
1=Enable
Operation mode
1=Alarming EF
2=Tripping EF
Enable XC Op mode 1=on
5=off
Reset delay time
0...6000
Ena Intermit EF
1=on
mode
5=off
Enable SOTF mode
1=on
5=off
SOTF Cond dura-
100...16000
tion
SOTF operate time
40...6000
Table 642: IFPTOC Non group settings (Advanced)
Parameter
Values (Range)
SOTF reset time
100...10000
Revert time
200...10000
Max Dur delta Calc
300...10000
Intr EF counter Lim
3...20
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REX640
Technical Manual
Unit
Step
*In
0.001
ms
10
Unit
Step
ms
10
ms
10
ms
10
Unit
Step
ms
10
ms
10
ms
10
1
Protection functions
Default
Description
0.010
Minimum current
for EF validity eval-
uation. Note that
In means residual
nominal current.
1=Enable
Enable adaptation
of fault direction
determination to
a fault direction
change during the
fault
500
Reset delay time
used in intermit-
tent earth fault
module
Default
Description
1=on
Operation Off / On
2=Touch voltage
Operation principle
based
0=Disable
Enable harmonics
for fault current
calculation
2=Tripping EF
Operation criteria
1=on
Enable cross-coun-
try fault tripping
functionality
20
Reset delay time
1=on
Enable intermittent
earth fault module
1=on
Enable Switch-On-
To-Fault logic mod-
ule
2000
Switch-On-To-Fault
module duration
60
Switch-On-To-Fault
module operate de-
lay time
Default
Description
500
Reset delay time
for Switch-OnTo-
Fault (SOTF) mod-
ule
300
Revert time for del-
ta-calculation
2000
Maximum duration
for delta calcula-
tion
3
Peak counter lim-
it for discrimina-
tion of intermittent
earth fault from
641

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