ABB RELION REX640 Technical Manual page 639

1MRS759142 F
Name
OP_XC
OP_SOTF
OP_INTR_EF
PEAK_IND
INTR_EF
EF_IND
VALID_EF
XC_FLT
4.2.10.7 IFPTOC Settings
Table 639: IFPTOC Group settings (Basic)
Parameter Values (Range)
Voltage start value 0.01...1.00
EF current Str Val 0.005...1.000
Touch Vol Str Val 10.0...2900.0
Operating curve
15=Definite time
type
18=Inverse time
EN50522
19=Inverse time
IEEE80
Ena RF compensa-
0=Disable
tion
1=Enable
Table continues on the next page
REX640
Technical Manual
Type
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
Unit Step
xUn 0.01
xIn 0.001
V 0.1
Protection functions
Description
touch voltage according to
the standards
Operate signal according
to cross-country stage earth-
fault module
Operate signal according to
SOTF-module
Operate signal according to
intermittent earth-fault mod-
ule
Current transient detection
indication (both in the faulty
and healthy feeder)
Intermittent earth fault indi-
cation in the faulty feeder
Non-directional indication of
earth-fault in the network
Validity of earth-fault current
estimate is confirmed
Indication of cross-country
fault in the network
Default Description
0.20 Start value for neu-
tral point voltage
Uo. Note that Un
means phase to
earth nominal volt-
age.
0.010 Earth-fault current
threshold for DT
stage or IDMT
stage. Note that In
means phase nomi-
nal current.
80.0 Touch voltage start
threshold for DT
stage or IDMT
stage in primary
volts
18=Inverse time Selection of time
EN50522 delay curve type in
touch voltage/fault
current estimation
module
0=Disable Enable compensa-
tion of fault resist-
ance in the estima-
ted earth-fault cur-
rent
639