Technical Data; Three-Phase Thermal Overload Protection, Two Time Constants T2Pttr; Identification; Function Block - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.1.4.10
4.1.5
4.1.5.1
4.1.5.2
366
Name Type
T_ENA_CLOSE INT32
TEMP_AMB FLOAT32
T1PTTR Enum

Technical data

Table 406: T1PTTR Technical data
Characteristic
Operation accuracy
1)
Operate time accuracy
1) Overload current > 1.2 × Operate level temperature
Three-phase thermal overload protection, two time constants
T2PTTR

Identification

Function description
Three-phase thermal overload
protection, two time constants

Function block

GUID-F5E8381D-24D2-4552-B39B-42F1A760CC09 V1 EN
Figure 203: Function block
Values (Range) Unit
0...60000 s
-99...999 °C
1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
Current measurement: ±1.5% of the set value or
±0.002 × I (at currents in the range of 0.01...4.00
n
× I )
n
±2.0% of the theoretical value or ±0.50 s
IEC 61850 IEC 60617
identification identification
T2PTTR 3Ith>T/G/C
1MRS759142 C
Description
Estimated time to
deactivate BLK_CLOSE
The ambient temperature
used in the calculation
Status
ANSI/IEEE C37.2
device number
49T/G/C
REX640
Technical Manual