Monitored Data; Technical Data - ABB 615 series Technical Manual

Section 4
Protection functions
Parameter Values (Range)
Curve parameter C 0.02...2.00
Curve parameter D 0.46...30.00
Curve parameter E 0.0...1.0
Table 394: 51NHA Non group settings (Advanced)
Parameter Values (Range)
Reset delay time 0...60000
4.2.5.8
4.2.5.9
408
Unit Step
1
1
1
Unit Step
ms 10

Monitored data

Table 395: 51NHA Monitored data
Name Type
PICKUP_DUR FLOAT32
I_HARM_RES FLOAT32
BLKD_I_REF BOOLEAN
51NHA Enum

Technical data

Table 396: 51NHA Technical data
Characteristic
Operation accuracy
1)2)
Pickup time
Reset time
Reset ratio
Trip time accuracy in definite time mode
Table continues on next page
Default Description
2.00 Parameter C for customer programmable
curve
29.10 Parameter D for customer programmable
curve
1.0 Parameter E for customer programmable
curve
Default Description
20 Reset delay time
Values (Range) Unit
0.00...100.00 %
0.0...30000.0 A
0=False
1=True
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
±5% of the set value or ±0.004 × I
Typically 77 ms
Typically 40 ms
Typically 0.96
±1.0% of the set value or ±20 ms
1MAC059074-MB A
Description
Ratio of pickup time / trip time
Calculated harmonics current
Current comparison status
indicator
Status
n
615 series ANSI
Technical Manual