Three-Phase Undervoltage Protection; Three-Phase Overvoltage Protection - ABB REG615 Product Manual

Generator and Interconnection Protection
REG615
Product version: 5.0 FP1
Table 45. Three-phase undervoltage protection (PHPTUV)
Characteristic
Operation accuracy
1)2)
Start time
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
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
Table 46. Three-phase undervoltage protection (PHPTUV) main settings
Parameter
Start value
Time multiplier
Operate delay time
1)
Operating curve type
1) For further reference, see the Operation characteristics table
Table 47. Three-phase overvoltage protection (PHPTOV)
Characteristic
Operation accuracy
1)2)
Start time
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
distribution of 1000 measurements
2) Includes the delay of the signal output contact
Start value = 1.20 × U
3) Maximum
n
40
Start value
U = 0.9 × set
Fault
, f = 50 Hz, undervoltage in one phase-to-phase with nominal frequency injected from random phase angle, results based on statistical
n n
Function
PHPTUV
PHPTUV
PHPTUV
PHPTUV
U = 1.1 × set Start value
Fault
, f = 50 Hz, overvoltage in one phase-to-phase with nominal frequency injected from random phase angle, results based on statistical
n n
Start value multiples in range of 1.10...2.00
,
Value
Depending on the frequency of the voltage measured: f
±1.5% of the set value or ±0.002 × U
Minimum Typical
62 ms 66 ms
Typically 40 ms
Relative hysteresis
Depends on the set
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
DFT: -50 dB at f = n × f , 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
Value
Depending on the frequency of the measured voltage: f
±1.5% of the set value or ±0.002 × U
Minimum Typical
23 ms 27 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 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
1MRS758279 B
±2 Hz
n
n
Maximum
70 ms
3)
Step
0.01
0.01
10
±2 Hz
n
n
Maximum
31 ms
3)
ABB