4.2.1.5.1
Characteristics of loop measurements in the RCD position:
Nominal rating
I
∆
N
4000 Ω
Display range
Specified
20 -
measurement
3999 Ω
domain
1 Ω
Resolution
15%+50pt
Accuracy
Nominal rating I
∆
N
Display range
Specified
0.20 – 39.99 Ω
measurement
domain
Resolution
Accuracy
Characteristics of the fault voltage calculation (SEV 3569 standard) :
Display range
Specified measurement domain
Resolution
Calculation formula
Characteristics of the short-circuit current calculation:
Display range
Resolution
Accuracy
Calculation formula
Measurement ranges and accuracy
10 mA
400 Ω
40 kΩ
4.00 – 10.00
7.0 – 399.9
Ω
kΩ
10 Ω
0.1 Ω
10%+15pt
15%+170pt
300 mA
40 Ω
400 Ω
40.0 – 333.3 Ω
0.01 Ω
0.1 Ω
15%+170pt
10%+15pt
400 A
0,1 A
Accuracy of the loop measurement
+ accuracy U
I
= U
/ Z
(or Z
K
REF
LPE
61
30 mA
4000 Ω
400 Ω
400 - 3333
0.0 – 399.9
Ω
Ω
1 Ω
0.1 Ω
10%+15pt
15%+50pt
500 mA
40 Ω
0.20 – 39.99 Ω
0.01 Ω
15%+100pt
400.0 V
5.0 - 50.0 V
0.1 V
U
= U
x R
/ R
F
REF
E
4000 A
1 A
if it is used
mes
if the voltage probe is connected)
E
100 mA
4000 Ω
400 – 1000
Ω
1 Ω
10%+15pt
400 Ω
40.0 – 200.0 Ω
0.1 Ω
10%+15pt
LPE
40 kA
10 A