Sonel MPI-540 - Measurement of Fault Loop Impedance Z; L-PE[RCD] (Without Triggering of RCD); Measurement of Parameters of RCD

MPI-540 ● MPI-540-PV – BRIEF USER MANUAL
62
8.1.4 Measurement of fault loop impedance Z
L-PE[RCD]
(without triggering of RCD)
Measurement of fault loop impedance Z
S
Test range according to IEC 61557-3:
 0.50…1999 Ω for 1.2 m leads, WS-03 and WS-04
 0.51...1999 Ω for 5 m, 10 m and 20 m leads
Display range
Resolution
Accuracy
0...19.99 Ω
0.01 Ω
(6% m.v. + 10 digits)
20.0...199.9 Ω
0.1 Ω
(6% m.v. + 5 digits)
200...1999 Ω
1 Ω
 It will not trip RCDs of I
Δn
≥ 30 mA
 Rated operating voltage U
n
: 110 V, 115 V, 127 V, 220 V, 230 V, 240 V
 Operating voltage range: 95 V…270 V
 Rated mains frequency f
n
: 50 Hz, 60 Hz
 Operating frequency range: 45…65 Hz
 Control of correctness of PE terminal connection by means of a touch electrode
8.1.5 Measurement of parameters of RCD
 Measurement of RCDs type: AC, A, B, B+, F, EV
 Rated operating voltage U
n
: 110 V, 115 V, 127 V, 220 V, 230 V, 240 V
 Operating voltage range: 95 V…270 V
 Rated mains frequency f
n
: 50 Hz, 60 Hz
 Operating frequency range: 45…65 Hz
RCD trigger and response time test t
A
(for measurement function t
A
)
Test range according to IEC 61557-6: 0 ms ... to the upper limit of displayed value
Type
of RCD
Setting
of multi-
ple val-
ues
Test range
Resolution
Accuracy
General type
▪ Short-time delay type
▪ AC module in EV type
0.5 I
n
0..300 ms (TN/TT)
0..400 ms (IT)
1 ms
±(2% m.v. + 2 digits)
1)
1 I
n
2 I
n
0..150 ms
5 I
n
0..40 ms
Selective
0.5 I
n
0..500 ms
1 I
n
2 I
n
0..200 ms
5 I
n
0..150 ms
▪ EV 6 mA DC
▪ RCM
1 I
n
0.0..10.0 s
0.1 s
±(2% m.v. + 3 digits)
10 I
n
0..300 ms
1 ms
33 I
n
2)
0..100 ms
50 I
n
3)
0..40 ms
1)
for I
n
= 10 mA and 0.5 I
n
accuracy is ±(2% m.v. + 3 digits)
2)
for measurements acc. to IEC 62955
3)
for measurements acc. to IEC 62752
 Accuracy of differential current setting:
for 1*I
n
, 2*I
n
, 5*I
n
..................................................................... 0..8%
for 0.5*I
n
.................................................................................... -8..0%