Technical Revision History; Three-Phase Thermal Protection For Feeders, Cables And Distribution Transformers T1Pttr; Identification - ABB RELION 611 Series Technical Manual

Section 4
Protection functions
4.1.2.12
4.1.3
4.1.3.1
130
Characteristic
Retardation time
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Suppression of harmonics
Measurement mode and Pol quantity = default, current before fault = 0.0 × I
1)
× U , f = 50 Hz, fault current in one phase with nominal frequency injected from random phase angle,
n n
results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
Start value = 2.5 × I
3) Maximum

Technical revision history

Table 116: DPHHPDOC Technical revision history
Technical revision
B
C
D
E
Table 117: DPHLPDOC Technical revision history
Technical revision
B
C
D
E
Three-phase thermal protection for feeders, cables and
distribution transformers T1PTTR

Identification

Function description
Three-phase thermal protection for
feeders, cables and distribution
transformers
Value
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
DFT: -50 dB at f = n × f
Start value multiples in range of 1.5...20
,
n
Change
Added a new input NON_DIR
Step value changed from 0.05 to 0.01 for the
multiplier setting.
Monitored data VMEM_USED indicating voltage
memory use.
Internal improvement.
Change
Added a new input NON_DIR
Step value changed from 0.05 to 0.01 for the
multiplier setting.
Monitored data VMEM_USED indicating voltage
memory use.
Internal improvement.
IEC 61850
identification
T1PTTR
1MRS757454 D
, where n = 2, 3, 4, 5,...
n
, voltage before fault = 1.0
n
IEC 60617 ANSI/IEEE C37.2
identification device number
3Ith>F 49F
Technical Manual
3)
Time
Time
611 series