Three-Phase Overvoltage Variation Protection (Phvptov) Main Settings; Three-Phase Overvoltage Protection (Phptov); Three-Phase Overvoltage Protection (Phptov) Main Settings - ABB REX640 Product Manual

REX640
Product version: 1
Table 81. Three-phase overvoltage variation protection (PHVPTOV) main settings
Parameter
Start value
Time interval
Num of start phases
Voltage selection
Table 82. 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
Start value = 1.0 × U
1) , 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
Table 83. Three-phase overvoltage protection (PHPTOV) main settings
Parameter
Start value
Time multiplier
Operate delay time
1)
Operating curve type
1) For further reference, see the Operation characteristics table
ABB
Function
PHVPTOV
PHVPTOV
PHVPTOV
PHVPTOV
Start value
U = 1.1 × set
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
,
n
Function
PHPTOV
PHPTOV
PHPTOV
PHPTOV
Value (Range)
0.05...3.00 × U
n
1...120 min
1 = 1 out of 3
2 = 2 out of 3
3 = 3 out of 3
1 = phase-to-earth
2 = phase-to-phase
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
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...1.60 × U
n
0.025...15.000
40...300000 ms
Definite or inverse time
Curve type: 5, 15, 17, 18, 19, 20
1MRS759144 A
Step
0.01
1
-
-
±2 Hz
n
n
Maximum
31 ms
3)
Step
0.01
0.005
10
55