ABB Relion 620 Series - Page 467

Parameter Values (Range) Unit Step Default Description
Curve parameter C 0.02...2.00 1 2.00 Parameter C for
customer program-
mable curve
Curve parameter D 0.46...30.00 1 29.10 Parameter D for
customer program-
mable curve
Curve parameter E 0.0...1.0 1 1.0 Parameter E for
customer program-
mable curve
Table 457: HAEFPTOC Non group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
Reset delay time 0...60000 ms 10 20 Reset delay time
4.2.6.8 Monitored data
Table 458: HAEFPTOC Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Ratio of start time / op-
erate time
I_HARM_RES FLOAT32 0.0...30000.0 A Calculated harmonics
current
BLKD_I_REF BOOLEAN
0=False
1=True
Current comparison
status indicator
HAEFPTOC Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.2.6.9 Technical data
Table 459: HAEFPTOC Technical data
Characteristic
Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2
Hz
±5% of the set value or ±0.004 × I
n
Start time , Typically 77 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in IDMT mode ±5.0% of the set value or ±20 ms
Suppression of harmonics -50 dB at f = f
n
-3 dB at f = 13 × f
n
1
Fundamental frequency current = 1.0 × I
n
, harmonics current before fault = 0.0 × I
n
, harmonics
fault current 2.0 × Start value , results based on statistical distribution of 1000 measurements.
2
Includes the delay of the signal output contact.
3
Maximum Start value = 2.5 × I
n
, Start value multiples in range of 2...20.
1MRS757644 H Protection functions
620 series
Technical Manual
467