|
Characteristic |
Value |
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|---|---|---|---|---|
|
Operation accuracy |
PHLPTOC |
Depending on the frequency of current measured: fn ±2 Hz |
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±1.5% of the set value or ±0.002 × In 1 ±1.5% of the set value or ±0.007 × In 2 |
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PHHPTOC and PHIPTOC |
±1.5% of the set value or ±0.002 × In 1 ±1.5% of the set value or ±0.007 × In 2 (at currents in the range of 0.1…10 × In) ±5% of the set value (at currents in the range of 10…40 × In) |
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PHIPTOC: IFault = 2 × set Start value IFault = 10 × set Start value |
Minimum |
Typical |
Maximum |
|
|
12ms 8 ms |
20 ms 13 ms |
38 ms 31 ms |
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PHHPTOC and PHLPTOC: IFault = 2 × set Start value |
25 ms |
35 ms |
48 ms |
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|
Reset time |
Typically 40 ms |
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|
Reset ratio |
Typically 0.96 |
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|
Retardation time |
<45 ms |
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Operate time accuracy in definite time mode |
±1.0% of the set value or ±40 ms |
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Operate time accuracy in inverse time mode |
±5.0% of the theoretical value or ±50 ms 5 |
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Suppression of harmonics |
RMS: No suppression DFT: -50 dB at f = n × fn, where n = 2, 3, 4, 5,… Peak-to-Peak: No suppression P-to-P+backup: No suppression |
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1 Measurement mode = "RMS", "DFT" and "Peak-Peak" mode with CT secondary >0.2 A
2 Measurement mode = "Peak-to-peak", CT Secondary <0.2 A
3 Measurement mode = default (depends on the 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
4 Includes the delay of the signal output contact (SO)
5 Maximum Start value = 2.5 × In, Start value multiples in the range of 1.5...20