Thytronic NA11

20
20
NA11 - Manual - 02 - 2009
TECHNICAL DATA
IE>> Element
I
ECLP
>> Activation time (t
ECLP>>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
E
>> Reset time delay (t
E
>>
RES
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Defi nite time
50N/51N Second threshold defi nite time (I
E
>>
def
) 0.010...10.00 I
En
0.010...0.999 I
En
(step 0.001 I
En
)
1.00...10.00 I
En
(step 0.01 I
En
)
I
E
>>
def
within CLP (I
ECLP>>def
) 0.010...10.00 I
En
0.010...0.999 I
En
(step 0.001 I
En
)
1.00...10.00 I
En
(step 0.01 I
En
)
I
E
>>
def
Operating time (t
E
>>
def
) 0.03...10.00 s (step 0.01 s)
IE>>> Element
I
ECLP
>>> Activation time (t
ECLP>>>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
E
>>> Reset time delay (t
E
>>>
RES
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Defi nite time
50N/51N Third threshold defi nite time (I
E
>>>
def
) 0.010...10.00 I
En
0.010...0.999 I
En
(step 0.001 I
En
)
1.00...10.00 I
En
(step 0.01 I
En
)
I
E
>>>
def
within CLP (I
ECLP>>>def
) 0.010...10.00 I
En
0.010...0.999 I
En
(step 0.001 I
En
)
1.00...10.00 I
En
(step 0.01 I
En
)
I
E
>>>
def
Operating time (t
E
>>>
def
) 0.03...10.00 s (step 0.01 s)
Pickup time ≤ 0.03 s
Dropout ratio 0.95...0.98
Dropout time ≤ 0.04 s
Overshoot time 0.03 s
Pickup accuracy ± 4% ± 1% I
En
Operate time accuracy 5% or ± 10 ms
Breaker Failure - BF
Phase current threshold (I
BF
>) 0.05...1.00 I
n
(step 0.01 I
n
)
Residual current threshold (I
EBF
>) 0.01...2.00 I
n
(step 0.01 I
En
)
Dropout ratio 0.95...0.98
Dropout time ≤ 0.05 s
BF Time delay (t
BF)
0.06...10.00 s (step 0.01 s)
Pickup accuracy (I
BF
>) ± 4% ± 1% I
n
Pickup accuracy (I
EBF
>) ± 4% ± 1% I
En
Operate time accuracy 5% or ± 10 ms
Residual overcurrent - 50N/51N - settings for low power CTs version (LPCT)
[1]
IE> Element
I
E
> Curve type (I
E
>
Curve
) DEFINITE
IEC/BS A, B, C
ANSI/IEEE MI, VI, EI
EM
I
ECLP
> Activation time (t
ECLP>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
E
> Reset time delay (t
E
>
RES
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Defi nite time
50N/51N First threshold defi nite time (I
E
>
def
) 0.100...35.0 I
n
0.100...0.999 I
n
(step 0.001 I
n
)
1.00...9.99 I
n
(step 0.01 I
n
)
10.0...35.0 I
n
(step 0.1 I
n
)
I
E
>
def
within CLP (I
ECLP>def
) 0.100...35.0 I
n
0.100...0.999 I
n
(step 0.001 I
n
)
1.00...9.99 I
n
(step 0.01 I
n
)
10.0...35.0 I
n
(step 0.1 I
n
)
Note 1 The computed residual current (vector sum of the phase currents) is employed for NA11 protection relays equipped with LPCT sensor inputs
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