ABB RED615 - Three-Phase Directional Overcurrent Protection (Dphxpdoc)

Table 29. Three-phase non-directional overcurrent protection (PHxPTOC) main settings
Parameter Function Value (Range) Step
Start Value PHLPTOC 0.05...5.00 × I
n
0.01
PHHPTOC 0.10...40.00 × I
n
0.01
PHIPTOC 1.00...40.00 × I
n
0.01
Time multiplier PHLPTOC 0.05...15.00 0.01
PHHPTOC 0.05...15.00 0.01
Operate delay time PHLPTOC 40...200000 ms 10
PHHPTOC 40...200000 ms 10
PHIPTOC 20...200000 ms 10
Operating curve type
1)
PHLPTOC Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19
PHHPTOC Definite or inverse time
Curve type: 1, 3, 5, 9, 10, 12, 15, 17
PHIPTOC Definite time
1) For further reference, see Operation characteristics table
Table 30. Three-phase directional overcurrent protection (DPHxPDOC)
Characteristic
Value
Operation accuracy Depending on the frequency of the current/voltage measured: f
n
±2 Hz
DPHLPDOC
Current:
±1.5% of the set value or ±0.002 × I
n
Voltage:
±1.5% of the set value or ±0.002 × U
n
Phase angle: ±2°
DPHHPDOC Current:
±1.5% of the set value or ±0.002 × I
n
(at currents in the range of 0.1…10 × I
n
)
±5.0% of the set value
(at currents in the range of 10…40 × I
n
)
Voltage:
±1.5% of the set value or ±0.002 × U
n
Phase angle: ±2°
Start time
1)2)
Minimum Typical Maximum
I
Fault
= 2.0 × set Start value
39 ms 43 ms 47 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <35 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in inverse time mode
±5.0% of the theoretical value or ±20 ms
3)
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
1) Measurement mode and Pol quantity = default, current before fault = 0.0 × I
n
, voltage before fault = 1.0 × U
n
, f
n
= 50 Hz, fault current in one phase with nominal frequency injected from
random phase angle, results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
3) Maximum Start value = 2.5 × I
n
, Start value multiples in range of 1.5 to 20
Line Differential Protection and Control
1MRS756500 K
RED615
Product version: 5.0 FP1
ABB 33