ABB REM615 ANSI 5.0 FP1, Product Manual, Page: 29 / 56

29
Protection functions
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Table 30. Three-phase non-directional overcurrent protection (PHxPTOC)
Characteristic Value
Operation accuracy
PHLPTOC
Depending on the frequency of the measured current: fn ±2 Hz
±1.5% of the set value or ±0.002 x I
n
PHHPTOC
(1)
and
PHIPTOC
±1.5% of set value or ±0.002 x I
n
(at currents in the range of 0.1…10 x I
n
)
±5.0% of the set value
(at currents in the range of 10…40 x I
n
)
Start time
(2), (3)
Minimum Typical Maximum
PHIPTOC:
I
Fault
= 2 x set Start value
I
Fault
= 10 x set Start value
16 ms
11 ms 19 ms
12 ms 23 ms
14 ms
PHHPTOC and PHLPTOC:
I
Fault
= 2 x set Start value 23 ms 26 ms 29 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time < 30 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 (4)
Suppression of harmonics
RMS: No suppression
DFT: -50dB at f =
n x f
n
, where n = 2, 3, 4, 5,…
Peak-to-Peak: No suppression
P-to-P+backup: No suppression
1 Not included in REM615
2 Set Operate delay time = 0,02 s, Operate curve type = IEC definite time, Measurement mode = default (depends on stage), current before fault = 0.0 × In, fn = 50 Hz, fault current in
one phase with nominal frequency injected from random phase angle, results based on statistical distribution of 1000 measurements
3 Includes the delay of the signal output contact
4 Includes the delay of the heavy-duty output contact
1 Not included in this product
2 For further reference, see the Operation characteristics table
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Table 31. 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 (1) 0.10...40.00 × I
n
0.01
PHIPTOC 1.00...40.00 × I
n
0.01
Time multiplier PHIPTOC 0.05...15.00 0.01
Operate delay time
PHLPTOC and PHHPTOC
40...200000 ms 10
PHIPTOC 20...200000 ms 10
Operating curve type
(2)
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
(1)
Definite or inverse time
Curve type: 1, 3, 5, 9, 10, 12, 15, 17
PHIPTOC Definite time