Thytronic NV10P - Frequency Rate of Change (81 R); Breaker Failure - BF

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NV10P - Manual - 01 - 2015
TECHNICAL DATA
f>> Reduced Operating time (t
cf
>>
def
) 0.07...10.00 s (step 0.01 s)
t
cf
>> Activation time (t
atcf
>>) 1...60 s (step 1 s)
Pickup time ≤ 0.03 s
Dropout ratio ≥ 0.998
Dropout time ≤ 0.04 s
Overshoot time 0.04 s
Pickup accuracy ± 20 mHz
Operate time accuracy 1.5% ± 10 ms
[1]
Frequency rate of change (81R)
df> Element
df> Operating mode (Mode-df>) Module/Positive/Negative
Defi nite time
81R First threshold defi nite time (df>
def
) 0.1...10.0 Hz/s (step 0.1 Hz/s)
df>
def
Operating time (tdf>
def
) 0.00...100.0 s
0.00...0.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
df>> Element
df>> Operating mode (Mode-df>>) Module/Positive/Negative
Defi nite time
81R Second threshold defi nite time (df>>
def
) 0.1...10.0 Hz/s (step 0.1 Hz/s)
df>>
def
Operating time (tdf>>
def
) 0.00...100.0 s
0.00...0.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
df>>> Element
df>>> Operating mode (Mode-df>>>) Module/Positive/Negative
Defi nite time
81R Third threshold defi nite time (df>>>
def
) 0.1...10.0 Hz/s (step 0.1 Hz/s)
df>>>
def
Operating time (tdf>>>
def
) 0.00...100.0 s
0.00...0.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
df>>>> Element
df>>>> Operating mode (Mode-df>>>>) Module/Positive/Negative
Defi nite time
81R Fourth threshold defi nite time (df>>>>
def
) 0.1...10.0 Hz/s (step 0.1 Hz/s)
df>>>>
def
Operating time (tdf>>>>
def
) 0.00...100.0 s
0.00...0.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Pickup time ≤ 0.3 s with setting df: 0.1...0.9 Hz/s
≤ 0.2 s with setting df: 1.0...4.9 Hz/s
≤ 0.1 s with setting df: 4.9...10.0 Hz/s
Dropout time ≤ 0.05 s
Reference values rest 0 df
trip 1.5 df
Pickup accuracy ± 20 mHz/s with setting df: 0.1...0.9 Hz/s
± 50 mHz/s with setting df: 1.0...4.9 Hz/s
± 200 mHz/s with setting df: 4.9...10.0 Hz/s
Operate time accuracy 3% ± 20 ms
Breaker failure - BF
BF Time delay (t
BF)
0.06...10.00 s (step 0.01 s)
Dropout ratio 0.95...0.98
Dropout time ≤ 0.05 s
Operate time accuracy 5% or ± 10 ms
Note 1: 1.5% ± 15 ms with operate time setting = 0.05 s
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