Thytronic XMR-T - 3.9 Metering

30
TECHNICAL DATA
— Arc Flash
Solid state high speed output 2
Fast input 1
Arc sensor input 4
Nominal current >2 A
Nominal voltage 250 V
DC
Breaking capacity 1A / 110W (L/R = 40 ms)
Maximum instantaneus current (3 sec) 6 A
Maximum instantaneus current (0.5 sec) 15 A
3.9 METERING
— Accuracy
MEASURE Reference values
Accuracy
Reference values
Accuracy
Phase current 0.1 I
n
0.2% 1 I
n
0.03%
Measured residual current 0.01 I
En
0.3% 1 I
En
0.02%
Calculated residual current 0.1...1 I
ECn
2% 1 I
ECn
0.3%
Phase voltage 0.1 U
n
0.2% 1 U
n
0.03%
Measured residual voltage 0.01 U
En
0.02% 0.1 U
En
0.02%
Calculated residual voltage 0.01 U
ECn
0.5% 0.1 U
ECn
0.3%
Power - Energy 0.01 P
n
2% 0.1...1 Pn 0.3%
Frequency 0.02 U
n
3 mHz 1 U
n
2 mHz
Phase 0.002 I
En
- 0.004 U
En
1.5° 0.005 I
En
- 0.01 U
En
- 0.1 I
En
- 0.5 U
En
0.2°
Positive/Negative sequence current I
1
or I
2
= 0.5 I
n
0.5% I
1
or I
2
= 0.5 I
n
0.5%
Positive/Negative sequence voltage U
1
or U
2
= 0.01 U
n
4% U
1
or U
2
= 0.15 U
n
0.3%
Pickup and operate time 1.5 x setting for fist element 5% ± 10 ms 2.5 x setting for other elements 5% ± 10 ms
XMR-T EQUIPMENT MANUAL
Ed. 2.9 - 02/2021