Technical Revision History; Directional Three-Independent-Phase Directional Overcurrent Protection Dph3Xpdoc; Identification - ABB RELION 620 Series Technical Manual

Section 4
Protection functions
4.1.3.12
4.1.4
4.1.4.1
282
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 291: DPHHPDOC Technical revision history
Technical revision
B
C
D
E
Table 292: DPHLPDOC Technical revision history
Technical revision
B
C
D
E
Directional three-independent-phase directional overcurrent
protection DPH3xPDOC

Identification

Function description
Directional three-independent-phase
directional overcurrent protection, low
stage
Directional three-independent-phase
directional overcurrent protection, high
stage
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
DPH3LPDOC
DPH3HPDOC
1MRS757644 F
, where n = 2, 3, 4, 5,...
n
, voltage before fault = 1.0
n
IEC 60617 ANSI/IEEE C37.2
identification device number
3I_3> -> 67-1_3
3I_3>> -> 67-2_3
Technical Manual
3)
Time
Time
620 series