ABB REF615 ANSI 5.0 FP1 Product Manual page 48

48 R E F 6 1 5 A N S I 5 . 0 F P 1 F E E D E R P R OT E C T I O N A N D C O N T R O L
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Table 49. Phase discontinuity protection (PDNSPTOC)
Characteristic
Operation accuracy
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Suppression of harmonics
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Table 50. Phase discontinuity protection (PDNSPTOC) main settings
Parameter
Start value
Operate delay time
Min phase current
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Table 51. Residual overvoltage protection (ROVPTOV)
Characteristic
Operation accuracy
Start time 1) 2)
U = 2 x set Start value
Fault
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Suppression of harmonics
1) Residual voltage before fault = 0.0 × U
measurements
2) Includes the delay of the signal output contact
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Table 52. Residual overvoltage protection (ROVPTOV) main settings
Parameter
Start value
Operate delay time
Function
PDNSPTOC
PDNSPTOC
PDNSPTOC
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 x U
Minimum
48 ms
Typically 40 ms
Typically 0.96
< 35 ms
±1.0% of the set value or ±20 ms
DFT: -50dB at f = n x f
, f = 50 Hz, residual voltage with nominal frequency injected from random phase angle, results based on statistical distribution of 1000
n n
Function
ROVPTOV
ROVPTOV
Value
Depending on the frequency of the measured current: f
±2% of the set value
<70 ms
Typically 40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × fn, where n = 2, 3, 4, 5,...
Value (range)
10...100%
100...30000 ms
0.05...0.30 × In
n
Typical
51 ms
, where n = 2, 3, 4, 5,...
n
Value (range)
0.010...1.000 × U
n
40...300000 ms
±2 Hz
n
Step
1
1
0.01
±2 Hz
n
Maximum
54 ms
Step
0.001
1