ABB RED615 ANSI, Руководство по эксплуатации продукта

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Table 47. Negative phase-sequence overcurrent protection (NSPTOC) main settings
Parameter Function Value (Range) Step
Start value NSPTOC 0.01...5.00 x I
n
0.01
Time multiplier NSPTOC 0.05...15.00 0.01
Operate delay time NSPTOC 40...200000 ms 10
Operating curve type
1) NSPTOC Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
17, 18, 19
1) For further reference please refer to the Operating characteristics table
Table 48. Phase discontinuity protection (PDNSPTOC)
Characteristic Value
Operation accuracy Depending on the frequency of the current measured: f
n
±2 Hz
±2% of the set value
Start time < 70 ms
Reset time < 40 ms
Reset ratio Typical 0.96
Retardation time < 35 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,…
Table 49. Phase discontinuity protection (PDNSPTOC) main settings
Parameter Function Value (Range) Step
Start value (Current ratio
setting I
2
/I
1
)
PDNSPTOC 10...100 % 1
Operate delay time PDNSPTOC 100...30000 ms 1
Min phase current PDNSPTOC 0.05...0.30 x I
n
0.01
Table 50. Circuit breaker failure protection (CCBRBRF)
Characteristic Value
Operation accuracy Depending on the frequency of the current measured: f
n
±2 Hz
±1.5% of the set value or ±0.002 x I
n
Operate time accuracy ±1.0% of the set value or ±20 ms
Line Differential Protection and Control 1MRS756500 F
RED615
Product version: 4.0
ABB 43