Rcd Testing - METREL EurotestAT MI 3101 Instruction Manual

MI 3101 EurotestAT:

8.4 RCD testing

8.4.1 General data
Nominal residual current ................... 10 mA, 30 mA, 100 mA, 300 mA, 500 mA,
Nominal residual current accuracy.... -0 / +0.1I; I = IN, 2IN, 5IN
Test current shape............................ Sine-wave (AC), pulsed (A), DC (B)
DC offset for pulsed test current ....... 6 mA (typical)
RCD type .......................................... (non-delayed), S (time-delayed)
Test current starting polarity ............. 0 º or 180 º
Voltage range ................................... 40 V  264 V (14 Hz  500 Hz)
RCD test current selection (r.m.s. value calculated to 20ms) according to IEC 61009:
IN × 1/2
IN (mA) AC A,F
10 5 3.5
30 15 10.5 15
100 50 35
300 150 105
500 250 175
1000 500 350
n.a..................................................... not applicable
AC type ............................................. sine wave test current
A, F types...... .................................. pulsed current
B, B+ types ....................................... smooth DC current
8.4.2 Contact voltage RCD-Uc
Measuring range according to EN61557 is 20.0 V  31.0V for limit contact voltage 25V
Measuring range according to EN61557 is 20.0 V  62.0V for limit contact voltage 50V
Measuring range (V)
0.0  19.9
20.0  99.9
The accuracy is valid if mains voltage is stabile during the measurement and PE terminal
is free of interfering voltages.
Test current....................................... max. 0.5I
Limit contact voltage ......................... 25 V, 50 V
Specified accuracy is valid for complete operating range.
8.4.3 Trip-out time
Complete measurement range corresponds to EN 61557 requirements.
Maximum measuring times set according to selected reference for RCD testing.
Measuring range (ms)
0.0  40.0
0.0  max. time *
* For max. time see normative references in 4.4.2 – this specification applies to max. time
>40 ms.
Test current....................................... ½I
1000 mA
-0.1I / +0; I = 0.5IN
AS / NZ selected: ± 5 %
IN × 1
B,B+ AC A,F B,B+ AC
5 10 20 20
30 42 60
50 100 141 200
150 300 424 600
250 500 707 1000 1000 1410 n.a.
500 1000 1410 n.a.
Resolution (V)
0.1
Resolution (ms)
IN × 2 IN × 5
A,F B,B+ AC
20 40 40 50
60 84 120 150
200 282 400 500
600 848 n.a. 1500 n.a. n.a.
2500 n.a. n.a.
2000 n.a. n.a. n.a.
(-0 % / +15 %) of reading ± 10 digits
(-0 % / +15 %) of reading
N
0.1
0.1
, I , 2I , 5I
N N N N
114
Technical specifications
RCD I
A,F B,B+ AC A,F B,B+
 
100 100
212 300  
707 1000  
 
 
n.a. n.a.  
Accuracy
Accuracy
1 ms
3 ms





n.a.