ABB REF615 ANSI 5.0 FP1 Product Manual page 51

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Table 62. 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
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Table 63. Three-phase thermal protection for feeders, cables and distribution transformers (T1PTTR)
Characteristic
Operation accuracy
Operate time accuracy 1)
1) Overload current > 1.2 × Operate level temperature
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Table 64. Three-phase thermal protection for feeders, cables and distribution transformers (T1PTTR) main settings
Parameter
Env temperature Set
Current reference
Temperature rise
Time constant
Maximum temperature
Alarm value
Reclose temperature
Current multiplier
Initial temperature
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Table 65. High-impedance differential protection (HIxPDIF)
Characteristic
Operation accuracy
Start time
1) 2)
I = 2.0 x set Start value
Fault
I = 10.0 x set Start value
Fault
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
1) Measurement mode = default (depends on stage), current before fault = 0.0 × I
on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
Function
FRPFRQ
FRPFRQ
FRPFRQ
FRPFRQ
FRPFRQ
FRPFRQ
Function
T1PTTR
T1PTTR
T1PTTR
T1PTTR
T1PTTR
T1PTTR
T1PTTR
T1PTTR
T1PTTR
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 × I
Minimum
12 ms
10 ms
< 40 ms
Typically 0.96
< 35 ms
±1.0% of the set value or ±20 ms
, f
n n
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
Current measurement: ±1.5% of the set value or ±0.002 × I
in the range of 0.01...4.00 × I
±2.0% of the theoretical value or ±0.50 s
Value (range)
-50...100°C
0.05...4.00 × I
n
0.0...200.0°C
60...60000 s
20.0...200.0°C
20.0...150.0°C
20.0...150.0°C
1...5
-50.0...100.0°C
n
Typical
16 ms
12 ms
= 50 Hz, fault current with nominal frequency injected from random phase angle, results based
Step
-
0.0001
0.0001
0.005
10
10
±2 Hz
n
(at currents
n
)
n
Step
1
0.01
0.1
1
0.1
0.1
0.1
1
0.1
±2 Hz
n
Maximum
24 ms
14 ms
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