Overexcitation Protection - ABB REG615 Product Manual

Generator and Interconnection Protection
REG615
Product version: 5.0 FP1
Table 54. Frequency protection (FRPFRQ) main settings
Parameter
Operation mode
Start value Freq>
Start value Freq<
Start value df/dt
Operate Tm Freq
Operate Tm df/dt
Table 55. 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) f = 50 Hz, results based on statistical distribution of 1000 measurements
n
2) Includes the delay of the signal output contact
Table 56. Overexcitation protection (OEPVPH) main settings
Parameter
Start value
Operating curve type
Time multiplier
Operate delay time
Cooling time
ABB
Function
FRPFRQ
FRPFRQ
FRPFRQ
FRPFRQ
FRPFRQ
FRPFRQ
Function
OEPVPH
OEPVPH
OEPVPH
OEPVPH
OEPVPH
Value (Range)
1 = Freq<
2 = Freq>
3 = df/dt
4 = Freq< + df/dt
5 = Freq> + df/dt
6 = Freq< OR df/dt
7 = Freq> OR df/dt
0.9000...1.2000 × f
n
0.8000...1.1000 × f
n
-0.2000...0.2000 × f /s
n
80...200000 ms
120...200000 ms
Value
Depending on the frequency of the measured current: f
±3.0% of the set value
Frequency change:
Typically 200 ms
Voltage change:
Typically 40 ms
Typically 40 ms
Typically 0.96
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±50 ms
Value (Range)
100...200%
Definite or inverse time
Curve type: 5, 15, 17, 18, 19, 20
0.1...100.0
200...200000 ms
5...10000 s
1MRS758279 B
Step
-
0.0001
0.0001
0.005
10
10
±2 Hz
n
Step
1
0.1
10
1
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