ABB RELION 630 Series Product Manual page 44

Generator Protection and Control
REG630
Product version: 1.3
Table 84. Overexcitation protection (OEPVPH)
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
1) Results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
Table 85. Overexcitation protection (OEPVPH) main settings
Parameter
Leakage React
Start value
Time multiplier
Operating curve type
Operate delay time
Table 86. Voltage vector shift protection (VVSPPAM)
Characteristic
Operation accuracy
Operate time
Table 87. Voltage vector shift protection (VVSPPAM) main settings
Parameter
Start value
Phase supervision
Over Volt Blk value
Under Volt Blk value
Voltage selection
44
Function
OEPVPH
OEPVPH
OEPVPH
OEPVPH
OEPVPH
Function
VVSPPAM
VVSPPAM
VVSPPAM
VVSPPAM
VVSPPAM
Value
At the frequency f = f
n
±2.5% of the set value or 0.01 × Ub/f
Frequency change
Voltage change
<60 ms
Typically 0.96
<45 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±50 ms
Value (Range)
0.0...50.0% Zb
100...200% UB/f
0.1...100.0
ANSI Def. Time
IEC Def. Time
OvExt IDMT Crv1
OvExt IDMT Crv2
OvExt IDMT Crv3
OvExt IDMT Crv4
0.10...200.00 s
Value
At the frequency f = f
n
±0.5% of the set value or ±0.01°
Typically 60 ms
Value (Range)
2...30°
All
Pos sequence
0.40...1.50 pu
0.15...1.00 pu
phase-to-earth
phase-to-phase
1MRS757583 C
Typically 200 ms (±20 ms)
Typically 100 ms (±20 ms)
Step
0.1
1
0.1
-
0.01
Step
1
-
0.01
0.01
-
ABB