Technical Data; Three-Phase Directional Overcurrent Protection Dphxpdoc; Identification - ABB RELION REX640 Technical Manual

1MRS759142 C
4.1.1.12
4.1.2
4.1.2.1
REX640
Technical Manual

Technical data

Table 363: PHxPTOC Technical data
Characteristic
Operation accuracy
PHLPTOC
PHHPTOC
and
PHIPTOC
1)
Start time
PHIPTOC
I
Fault
value
I
Fault
value
PHHPTOC and
PHLPTOC
I
Fault
value
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Suppression of harmonics
Measurement mode = default (depends on stage), current before fault = 0.0 × I
1)
in one phase with nominal frequency injected from random phase angle, results based on statistical
distribution of 1000 measurements
2) Measured with static signal output (SSO)
3) Includes the delay of the signal output contact (SO)
Start value = 2.5 × I
4) Maximum

Three-phase directional overcurrent protection DPHxPDOC

Identification

Function description
Three-phase directional overcurrent
protection, low stage
Three-phase directional overcurrent
protection, high stage
Value
Depending on the frequency of the measured
current: f
±1.5% of the set value or ±0.002 × I
±1.5% of the set value or ±0.002 × I
(at currents in the range of 0.1...10 × I
±5.0% of the set value
(at currents in the range of 10...40 × I
Minimum
2)
:
8 ms
Start
= 2 × set
7 ms
Start
= 10 × set
3)
:
23 ms
= 2 × set Start
Typically <40 ms
Typically 0.96
<30 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
RMS: No suppression
DFT: -50 dB at f = n × f
Peak-to-Peak: No suppression
P-to-P+backup: No suppression
Start value multiples in the range of 1.5...20
,
n
IEC 61850
identification
DPHLPDOC
DPHHPDOC
Section 4
Protection functions
±2 Hz
n
n
n
n
Typical Maximum
12 ms 15 ms
9 ms 12 ms
26 ms 29 ms
, where n = 2, 3, 4, 5,...
n
, f = 50 Hz, fault current
n n
IEC 60617 ANSI/IEEE C37.2
identification device number
3I> -> 67P/51P-1
3I>> -> 67P/51P-2
)
n
)
4)
325