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
