Technical Data; Technical Revision History; Three-Phase Thermal Overload Protection, Two Time Constants T2Pttr; Identification - ABB RELION 620 Series Technical Manual

1MRS757644 F
4.1.6.9
4.1.6.10
4.1.7
4.1.7.1
4.1.7.2
620 series
Technical Manual

Technical data

Table 330: T1PTTR Technical data
Characteristic
Operation accuracy
1)
Operate time accuracy
1) Overload current > 1.2 × Operate level temperature

Technical revision history

Table 331: T1PTTR Technical revision history
Technical revision
C
D
E
F
Three-phase thermal overload protection, two time constants
T2PTTR

Identification

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

Function block

GUID-68AADF30-9DC7-49D5-8C77-14E774C8D1AF V2 EN
Figure 160: Function block
Protection functions
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
Change
Removed the Sensor available setting parameter
Added the AMB_TEMP input
Internal improvement.
Internal improvement.
IEC 61850 IEC 60617
identification identification
T2PTTR 3Ith>T/G/C
Section 4
ANSI/IEEE C37.2
device number
49T/G/C
325