Monitored Data; Technical Data; Thermal Protection; Three-Phase Thermal Protection For Feeders, Cables And Distribution Transformers 49F - ABB RELION 620 Series Technical Manual

1MAC504801-IB E
4.4.5.8
4.4.5.9
4.5
4.5.1
4.5.1.1
620 series ANSI
Technical Manual

Monitored data

Table 310: 55 Monitored data
Name Type
PICKUP_DUR FLOAT32
PF FLOAT32
55 Enum

Technical data

Table 311: 55 Technical data
Characteristic
Operation accuracy
Operate time accuracy
Suppression of harmonics
Reset time

Thermal protection

Three-phase thermal protection for feeders, cables and
distribution transformers 49F

Identification

Function description
Three-phase thermal protection for
feeders, cables and distribution
transformers
Values (Range) Unit
0.00...100.00 %
-1.00...1.00
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Value
Dependent on the frequency of the current
measured: f ±2 Hz
n
±0.018 for power factor
±(1.0% or 30 ms)
DFT: -60 dB at f = n × f
<40 ms
IEC 61850 IEC 60617
identification identification
T1PTTR 3lth>
Section 4
Protection functions
Description
Ratio of pickup time / trip time
Calculated value of the 3–
phase power factor
Status
, where n = 2, 3, 4, 5, 6, 7
n
ANSI/IEEE C37.2
device number
49F
373