ABB REL 501-C1 2.5 Technical Reference Manual page 96

84
General fault criteria (GFC)
Table 95: General setting parameters
Parameter Range
Operation Off/On
INReleasePE 10-100
Step: 1
INBlockPP 10-100
Step: 1
Timer tPP Off/On
tPP 0.000-60.000
Step: 0.001
Timer tPE Off/On
tPE 0.000-60.000
Step:0.001
Path in local HMI: Settings/Functions/Groupn/Impedance/GenFltCriteria
Table 96: Setting parameters for the overcurrent operating mode
Parameter Range
Operation I> Off/On
IP> 10-400
Step: 1
IN> 10-150
Step: 1
Setting parameters for the resistive and the reactive reach are given for terminals with rated cur-
rent Ir = 1A. All values should be divided by 5 for terminals with rated current Ir = 5A.
Path in local HMI: Settings/Functions/Groupn/Impedance/GenFltCriteria
Default Unit Description
Off - Operating mode
20 % of 3I0 limit for releasing phase-to-earth
lphMax measuring loops
40 % of 3I0 limit for blocking phase-to-phase
lphMax measuring loops
Off - Time delayed of trip for phase-to-phase
faults enabled or disabled
5.000 s Time delay of trip for phase-to-phase
faults
Off - Time delay of trip for phase-to-earth faults
enabled or disabled
5.000 s Time delay of trip for phase-to-earth faults
Default Unit Description
Off - Operation of current based GFC mea-
surement enabled or disabled
50 % of I1b Set operate value for measured phase
currents
50 % of I4b Set operate value for measured residual
current
Chapter 4
Line distance