ABB REF615 ANSI 5.0 FP1 Product Manual page 49

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Table 53. Three-phase undervoltage protection (PHPTUV)
Characteristic
Operation accuracy
Start time
1) 2)
U = 0.9 x set Start value
Fault
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Suppression of harmonics
1) Start value = 1.0 × U , Voltage before fault = 1.1 × U
n
statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
3) Minimum Start value = 0.50, Start value multiples in range of 0.90...0.20
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Table 54. Three-phase undervoltage protection (PHPTUV) main settings
Parameter
Start value
Time multiplier
Operate delay time
Operating curve type
1)
1) For further reference, see the Operation characteristics table
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Table 55. Three-phase overvoltage protection (PHPTOV)
Characteristic
Operation accuracy
Start time 1) 2)
U = 1.1 x set Start value
Fault
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Suppression of harmonics
1) Start value = 1.0 × U , Voltage before fault = 0.9 × U
n
statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
3) Maximum Start value = 1.20 × U , Start value multiples in range of 1.10...2.00
n
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Table 56. Three-phase overvoltage protection (PHPTOV) main settings
Parameter
Start value
Time multiplier
Operate delay time
Operating curve type
1)
1) For further reference, see the Operation characteristics table
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 x U
Minimum
62 ms
Typically 40 ms
Depends on the set Relative hysteresis
< 35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms3)
DFT: -50dB at f = n x f
, f = 50 Hz, undervoltage in one phase-to-phase with nominal frequency injected from random phase angle, results based on
n n
Function
PHPTUV
PHPTUV
PHPTUV
PHPTUV
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 x U
Minimum
23 ms
Typically 40 ms
Depends on the set Relative hysteresis
< 35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms3)
DFT: -50dB at f = n x f
, fn = 50 Hz, overvoltage in one phase-to-phase with nominal frequency injected from random phase angle, results based on
n
Function
PHPTOV
PHPTOV
PHPTOV
PHPTOV
n
Typical
66 ms
, where n = 2, 3, 4, 5,...
n
Value (range)
0.05...1.20 × U
n
0.05...15.00
60...300000 ms
Definite or inverse time
Curve type: 5, 15, 21, 22, 23
n
Typical
27 ms
, where n = 2, 3, 4, 5,...
n
Value (range)
0.05...1.60 × U
n
0.05...15.00
40...300000 ms
Definite or inverse time
Curve type: 5, 15, 17, 18, 19, 20
±2 Hz
n
Maximum
70 ms
Step
0.01
0.01
10
±2 Hz
n
Maximum
31 ms
Step
0.01
0.01
10
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