Thytronic XMR-P 4l+4V - Residual Overcurrent - 50 N;51 N or High Impedance Restricted Earth Fault - 87 NHIZ; Voltage-Controlled; Restraint Overcurrent - 51 V

TECHNICAL DATA
33
I
LR
>> Element
CLP operating mode (Mode 51LR>>
) With/without speed control
CLP activation time (t
LRCLP>>
)
2124
0.00...200 s
0.00...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...200 s (step 1 s)
Definite time
Second threshold definite time (I
LR
>>
def
) 0.90...8.00 I
B
(step 0.01 I
B
)
Operating time (t
LR
>>
def
) 0.10...200 s
0.10...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...200 s (step 1 s)
Pickup time ≤ 0.04 s
Dropout ratio 0.95...0.98
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 0.5% with 0.1 I
n
± 0.2% with 1 I
n
Operate time accuracy 5% ± 10 ms
— Voltage-controlled / restraint overcurrent - 51V
Common configuration:
Operating mode (Mode51V
) Voltage controlled
Voltage restraint
Voltage restraint threshold (U
-I/U
<) 0.10...1.00 U
n
(step 0.01 U
n
)
Voltage controlled first threshold (U
-I/U-1
<) 0.10...1.00 U
n
(step 0.01 U
n
)
Voltage controlled second threshold (U
-I/U-2
<) 0.10...1.00 U
n
(step 0.01 U
n
)
Reduction factor (K
) 0.10...1.00 (step 0.01)
I-I/U> Element
Reset time delay (t-
I/U>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
First threshold definite time (I-
I/U>def
) 0.20...10.00 I
n
(step 0.01 I
n
)
Operating time (t
-I/U>def
) 0.07...100.0 s
0.07...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
I-I/U>> Element
Reset time delay (t-
I/U>>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
Second threshold definite time (I-
I/U>>def
) 0.20...20.00 I
n
(step 0.01 I
n
)
Operating time (t
-I/U>>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 ≤ 0.04 s
Dropout ratio 0.95...0.98
Dropout time ≤ 0.05 s
Overshoot time 0.04 s
Pickup accuracy ± 0.5% on current measures
± 0.5% on voltage measures
Operate time accuracy 5% ± 10 ms
— Residual overcurrent - 50N/51N or High impedance restricted earth fault - 87NHIZ
IE> Element
Curve type (I
E
>
Curve
) DEFINITE,
IEC/BS A, B, C,
ANSI/IEEE MI, VI, EI, LIT, EM
CLP operating mode (I
ECLP
> Mode) OFF/ON-Element blocking/ON-Change setting
CLP 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)
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
First 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
n
(step 0.01 I
En
)
Note 21 The element is blocked for the t
LRCLP
time (an adjustable threshold active during CLP does not exist)
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021