Thytronic NA30

TECHNICAL DATA
21
NA30 - Manual - 04 - 2022
Inverse time
[1]
67N Second threshold inverse time (I
ED
>>
inv
- U
ED
>>
inv
)
Residual current pickup value 0.002...2.00 I
En
0.002...0.999 I
En
(step 0.001 I
En
)
1.00...2.00 I
En
(step 0.01 I
En
)
Residual voltage pickup value 0.004...0.500 U
En
(step 0.001 U
En
)
Characteristic angle 0...359°
(step 1°)
Half operating sector 1...180°
(step 1°)
I
ED
>
inv
within CLP (I
EDCLP>>inv
) 0.002...2.00 I
En
0.002...0.999 I
En
(step 0.001 I
En
)
1.00...2.00 I
En
(step 0.01 I
En
)
I
ED
>>
inv
Operating time (t
ED
>>
inv
) 0.02...10.00 s (step 0.01 s)
I
ED
>>> Element
I
EDCLP
>>> Activation time (t
EDCLP>>>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
ED
>>> Reset time delay (t
ED
>>>
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
67N Third threshold definite time (I
ED
>>>
def
- U
ED
>>>
def
)
Residual current pickup value 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
)
Residual voltage pickup value 0.004...0.500 U
En
(step 0.001 U
En
)
Characteristic angle 0...359°
(step 1°)
Half operating sector 1...180°
(step 1°)
I
ED
>>>
def
within CLP (I
EDCLP
>>>
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
ED
>>>
def
Operating time (t
ED
>>>
def
) 0.05...10.00 s (step 0.01 s)
I
ED
>>>> Element
I
EDCLP
>>>> Activation time (t
EDCLP>>>>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
ED
>>>> Reset time delay (t
ED
>>>>
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
67N Fourth threshold definite time (I
ED
>>>>
def
- U
ED
>>>>
def
)
Residual current pickup value 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
)
Residual voltage pickup value 0.004...0.500 U
En
(step 0.001 U
En
)
Characteristic angle 0...359°
(step 1°)
Half operating sector 1...180°
(step 1°)
I
ED
>>>>
def
within CLP (I
EDCLP
>>>>
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
ED
>>>>
def
Operating time (t
ED
>>>>
def
) 0.05...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 (current thresholds) ± 1% with 0.1 I
n
, ± 0.5% with 1 I
n
Pickup accuracy (voltage thresholds) ± 0.3% with 0.1U
n
, ± 0.1% with 1U
n
Pickup accuracy (displacements) ± 2° with 0.1 I
n
- 0.1U
n
± 0.5° with 1I
n
- 1 U
n
Operate time accuracy 5% or ± 10 ms
Note 1 Standard Inverse Time (IEC 255-3/BS142 type A or SIT): t = 0.14 · t
ED
>
inv
/ [(I
E
/I
ED
>
inv
)
0.02
- 1]
Very Inverse Time (IEC 255-3/BS142 type B or VIT): t = 13.5 · t
ED
>
inv
/ [(I
E
/I
ED
>
inv
) - 1]
Extremely Inverse Time (IEC 255-3/BS142 type C or EIT): t = 80 · t
ED
>
inv
/ [(I
E
/I
ED
>
inv
)
2
- 1]
Moderately Inverse (ANSI/IEEE type MI): t = t
ED
>
inv
· {0.01 / [(I
E
/I
ED
>
inv
)
0.02
- 1] + 0.023}
Very Inverse (ANSI/IEEE type VI): t = t
ED
>
inv
· {3.922 / [(I
E
/I
ED
>
inv
)
2
- 1] + 0.098}
Extremely Inverse (ANSI/IEEE type EI): t = t
ED
>
inv
· {5.64 / [(I
E
/I
ED
>
inv
)
2
- 1] + 0.024}
Electromechanical (EM): t = 0.28 · t
ED
>
inv
/ [-0.236 · (I
E
/I
ED
>
inv
)
-1
+ 0.339]
t: operate time
I
ED
>
inv
: pickup value
t
ED
>
inv
: operate time setting
Asymptotic reference value: 1.1 I
ED
>
inv
Minimum operate time: 0.1 s
Equation is valid for 1.1 ≤ I
E
/I
ED
>
inv
≤ 20
With I
ED
>
inv
pickup ≥ 0.5 I
n
, the upper limit is 10 I
En