Thytronic Pro-N NVA100X-D - Residual Overcurrent - 50 N.2;51 N.2 or High Impedance Restricted Earth Fault - 87 NHIZ.2 - Side 2

28
NVA100X-D - Manual - 02 - 2016
TECHNICAL DATA
Residual overcurrent - 50N.2/51N .2 or High impedance restricted earth fault - 87NHIZ.2 - side 2
IE2> Element
I
E2
> Curve type (I
E2
>
Curve
) DEFINITE, IEC/BS A, B, C,
ANSI/IEEE MI, VI, EI, LIT, EM
CLP operating mode (I
E2CLP
> Mode) OFF/ON-Element blocking/ON-Change setting
CLP activation time (t
E2CLP>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
E2
> Reset time delay (t
E2
>
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.2/51N.2 First threshold defi nite time (I
E2
>
def
) 0.002...10.00 I
En2
0.002...0.999 I
En2
(step 0.001 I
En2
)
1.00...10.00 I
En2
(step 0.01 I
En2
)
I
E2
>
def
within CLP (I
E2CLP>def
) 0.002...10.00 I
En2
0.002...0.999 I
En2
(step 0.001 I
En2
)
1.00...10.00 I
En2
(step 0.01 I
En2
)
I
E2
>
def
Operating time (t
E2
>
def
) 0.04...200 s
0.04...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...200 s (step 1 s)
Inverse time
[1]
50N.2/51N.2 First threshold inverse time (I
E2
>
inv
) 0.002...2.00 I
En2
0.002...0.999 I
En2
(step 0.001 I
En2
)
1.00...2.00 I
En2
(step 0.01 I
En2
)
I
E2
>
inv
within CLP (I
E2CLP>inv
) 0.002...2.00 I
En2
0.002...0.999 I
En2
(step 0.001 I
En2
)
1.00...2.00 I
En2
(step 0.01 I
En2
)
I
E2
>
inv
Operating time (t
E2
>
inv
) 0.02...60.0 s
0.02...9.99 s (step 0.01 s)
10.0...60.0 s (step 0.1 s)
IE2>> Element
CLP operating mode (I
E2CLP
>> Mode) OFF/ON-Element blocking/ON-Change setting
CLP activation time (t
E2CLP>>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
E2
>> Reset time delay (t
E2
>>
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.2/51N.2 Second threshold defi nite time (I
E2
>>
def
0.002...10.00 I
En2
0.002...0.999 I
En2
(step 0.001 I
En2
)
1.00...10.00 I
En2
(step 0.01 I
En2
)
I
E2
>>
def
within CLP (I
E2CLP>>def
) 0.002...10.00 I
En2
0.002...0.999 I
En2
(step 0.001 I
En2
)
1.00...10.00 I
En2
(step 0.01 I
En2
)
I
E2
>>
def
Operating time (t
E2
>>
def
) 0.03...10.00 s (step 0.01 s)
IE2>>> Element
CLP operating mode (I
E2CLP
>>> Mode) OFF/ON-Element blocking/ON-Change setting
CLP activation time (t
E2CLP>>>
) 0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I
E2
>>> Reset time delay (t
E2
>>>
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.2/51N.2 Third threshold defi nite time (I
E2
>>>
def
) 0.002...10.00 I
En2
0.002...0.999 I
En2
(step 0.001 I
En2
)
1.00...10.00 I
En2
(step 0.01 I
En2
)
Note 1 Standard Inverse Time (IEC 255-3/BS142 type A or SIT): t = 0.14 · t
E2
>
inv
/ [(I
E2
/I
E2
>
inv
)
0.02
- 1]
Very Inverse Time (IEC 255-3/BS142 type B or VIT): t = 13.5 · t
E2
>
inv
/ [(I
E2
/I
E2
>
inv
) - 1]
Extremely Inverse Time (IEC 255-3/BS142 type C or EIT): t = 80 · t
E2
>
inv
/ [(I
E2
/I
E2
>
inv
)
2
- 1]
Very Inverse Time (IEC 255-3/BS142 type B or LIT): t = 120 · t
E2
>
inv
/ [(I
E2
/I
E2
>
inv
) - 1]
Moderately Inverse (ANSI/IEEE type MI): t = t
E2
>
inv
· {0.01 / [(I
E2
/I
E2
>
inv
)
0.02
- 1] + 0.023}
Very Inverse (ANSI/IEEE type VI): t = t
E2
>
inv
· {3.922 / [(I
E2
/I
E2
>
inv
)
2
- 1] + 0.098}
Extremely Inverse (ANSI/IEEE type EI): t = t
E2
>
inv
· {5.64 / [(I
E2
/I
E2
>
inv
)
2
- 1] + 0.024}
Electromechanical (EM): t = 0.28 · t
E2
>
inv
/ [-0.236 · (I
E2
/I
E2
>
inv
)
-1
+ 0.339]
I
E2
: residual current input
t: operate time
I
E2
>
inv
: pickup value
t
E2
>
inv
: operate time setting
Asymptotic reference value: 1.1 I
E2
>inv
Minimum operate time: 0.1 s
Equation is valid for 1.1 ≤ I
E2
/ I
E2
>
inv
≤ 20, with I
E2
>
inv
pickup ≥ 0.5 I
En2
, the upper limit is 10 I
En2
—