ABB RELION 620 Series Technical Manual page 446

Section 4
Protection functions
Parameter
Min operate current
Min operate voltage
Io signal Sel
Uo signal Sel
4.2.4.9
4.2.4.10
440
Values (Range) Unit
0.01...1.00 xIn
0.01...1.00 xUn
1=Measured Io
2=Calculated Io
1=Measured Uo
2=Calculated Uo
Monitored data
Table 442: EFPADM Monitored data
Name
START_DUR
FAULT_DIR
COND_RES
SUS_RES
EFPADM
Technical data
Table 443: EFPADM Technical data
Characteristic
1)
Operation accuracy
2)
Start time
Reset time
Operate time accuracy
Suppression of harmonics
1) Uo = 1.0 × Un
2) Includes the delay of the signal output contact, results based on statistical distribution of 1000
measurements
Step Default
0.01 0.01
0.01 0.01
1=Measured Io
1=Measured Uo
Type Values (Range)
FLOAT32 0.00...100.00
Enum 0=unknown
1=forward
2=backward
3=both
FLOAT32 -1000.00...1000.
00
FLOAT32 -1000.00...1000.
00
Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Value
At the frequency f = f
±1.0% or ±0.01 mS
(In range of 0.5...100 mS)
Minimum
56 ms
40 ms
±1.0% of the set value of ±20 ms
-50 dB at f = n × f
1MRS757644 F
Description
Minimum operating current
Minimum operating voltage
Selection for used Io signal
Selection for used Uo signal
Unit Description
% Ratio of start time /
operate time
Detected fault direction
mS Real part of calculated
neutral admittance
mS Imaginary part of
calculated neutral
admittance
Status
n
Typical Maximum
60 ms 64 ms
, where n = 2, 3, 4, 5,...
n
Technical Manual
620 series