ABB RELION 630 Series Product Manual page 38

Generator Protection and Control
REG630
Product version: 1.3
Table 62. Positive-sequence overvoltage protection (PSPTOV)
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Suppression of harmonics
1) Positive-sequence voltage before fault = 0.0 × U
2) Includes the delay of the signal output contact
Table 63. Positive-sequence overvoltage protection (PSPTOV) main settings
Parameter
Start value
Operate delay time
Table 64. Positive-sequence undervoltage protection (PSPTUV)
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Suppression of harmonics
1) Positive-sequence voltage before fault = 1.1 × U
2) Includes the delay of the signal output contact
Table 65. Positive-sequence undervoltage protection (PSPTUV) main settings
Parameter
Start value
Operate delay time
Voltage block value
38
U = 1.1 × set Start value
Fault
Start value
U = 2.0 × set
Fault
, f = 50 Hz, positive-sequence overvoltage of nominal frequency injected from random phase angle
n n
Function
PSPTOV
PSPTOV
U = 0.9 × set Start value
Fault
, f = 50 Hz, positive-sequence undervoltage of nominal frequency injected from random phase angle
n n
Function
PSPTUV
PSPTUV
PSPTUV
Value
At the frequency f = f
n
±1.5% of the set value or ±0.002 × U
Typically 29 ms (±15 ms)
Typically 24 ms (±15 ms)
<40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
Value (Range)
0.800...1.600 pu
0.040...120.000 s
Value
At the frequency f = f
n
±1.5% of the set value or ±0.002 × U
Typically 28 ms (±15 ms)
<40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
Value (Range)
0.010...1.200 pu
0.040...120.000 s
0.01...1.0 pu
1MRS757583 C
n
Step
0.001
0.001
n
Step
0.001
0.001
0.01
ABB