TECHNICAL DATA
19
NA30 - Manual - 04 - 2022
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)
Definite time
50N/51N Third threshold definite time (I
E
>>>
def
) 0.002...10.00 I
En
0.002...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
) 0.002...10.00 I
En
0.002...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 ≤ 0.05 s
Overshoot time 0.03 s
Pickup accuracy ± 0.5% with 0.01 I
En
, ± 0.2% with 1 I
En
Operate time accuracy 5% or ± 10 ms
Residual overvoltage - 59N
Common configuration:
59N Operation from 74VT external (
74
VText59N) ON/OFF
U
E
> Element
U> Curve type (U>
Curve
) DEFINITE/INVERSE
[1]
U
E
> Reset time delay (t
UE>RES
)
0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Definite time
59N First threshold definite time (
U
E
>
def
) 0.01...0.70 U
En
(step 0.01 U
En
)
U
E
>
def
Operating time (t
UE
>
def
) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Inverse time
59N First threshold inverse time (
U
E
>
inv
) 0.01...0.50 U
En
(step 0.01 U
En
)
U
E
>
inv
Operating time (t
UE
>
inv
) 0.10...100.0 s
0.10...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
U
E
>> Element
U
E
>> Reset time delay (t
UE>>RES
)
0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Definite time
59N Second threshold definite time (
U
E
>>
def
) 0.01...0.70 U
En
(step 0.01 U
En
)
U
E
>>
def
Operating time (t
UE
>>
def
) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 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% U
En
Operate time accuracy 5% or ± 10 ms
Directional earth fault overcurrent - 67N
Common configuration:
67N Operating mode (Mode67N) I /I∙cos
67N Multiplier of threshold for insensitive zone (M) 1.5...10.0
(step 0.1)
67N Operation from 74VT external (74VText67N ) OFF/Block/Not directional
I
ED
> Element
I
ED
> Curve type (I
ED
>Curve)
DEFINITE
IEC/BS A, B, C, ANSI/IEEE MI, VI, EI, EM
Note 1 The mathematical formula for INVERSE curve is t= (0.5 ∙ t
UE
>
inv
) / [(U
E
/U
E
>
inv
) - 1]
t: operating time (in seconds)
t
UE
>
inv
: operating time setting (referred to U
E
/U
E
>
inv
= 1.5 )
U
E
: residual input voltage (direct or calculated)
U
E
>
inv
: threshold setting
Asymptotic reference value: 1.1U
E
>
inv
Minimum operate time: 0.1 s
Equation is valid for 1.1 ≤ U
E
/U
E
>
inv
≤ 4
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