ABB Relion 620 Series - Directional Three-Independent-Phase Directional Overcurrent Protection Dph3 Xpdoc

Characteristic Value
Retardation time <35 ms
Operate time accuracy in
definite time mode
±1.0% of the set value or ±20 ms
Operate time accuracy in in-
verse time mode
±5.0% of the theoretical value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
4.1.3.12 Technical revision history
Table 291: DPHHPDOC Technical revision history
Technical revision Change
B
Added a new input NON_DIR
C Step value changed from 0.05 to 0.01 for the
Time multiplier setting.
D Monitored data VMEM_USED indicating volt-
age memory use.
E Internal improvement.
Table 292: DPHLPDOC Technical revision history
Technical revision Change
B
Added a new input NON_DIR
C Step value changed from 0.05 to 0.01 for the
Time multiplier setting.
D Monitored data VMEM_USED indicating volt-
age memory use.
E Internal improvement.
4.1.4 Directional three-independent-phase directional
overcurrent protection DPH3xPDOC
4.1.4.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE
C37.2 device
number
Directional three-independent-
phase directional overcurrent
protection, low stage
DPH3LPDOC
3_3I> -> 67-1_3
Directional three-independent-
phase directional overcurrent
protection, high stage
DPH3HPDOC 3I_3>> -> 67-2_3
3
Maximum Start value = 2.5 × I
n
, Start value multiples in range of 1.5...20
Protection functions 1MRS757644 H
298 620 series
Technical Manual