MI 3152(H)
Eurotest
XC (2,5 kV)
Tests and measurements
113
7.10
Zs rcd – Fault loop impedance and prospective fault
current in system with RCD
Zs rcd measurement prevents trip-out of the RCD in systems with the RCD.
Figure 7.35: Zs rcd menu
Measurement parameters / limits
Measurement parameters / limits
Protection
Protection type
[TN, TTrcd]
Fuse Type
1)
Selection of fuse type
[Off, gG, NV, B, C, D, K, Custom]
Fuse I
1)
Rated current of selected fuse
Fuse t
1)
Maximum breaking time of selected fuse
Isc factor
Isc factor
[0.20 ... 3.00]
Ia(Ipsc)
1)
Minimum fault current for selected fuse or custom value
I ∆N
2)
Rated RCD residual current sensitivity
[10 mA, 30 mA, 100 mA, 300 mA,
500 mA, 1000 mA]
RCD type
2)
RCD type
[AC, A, F, B
4)
, B+
4)
,F]
Selectivity
2)
Characteristic
[G, S]
Test
Selection of test
[-, L-PE, L1-PE, L2. PE, L3-PE]
3)
I test
Test current
[Standard, Low]
Limit Uc
2)
Contact voltage limit
[12 V, 25 V, 50 V]
2)
1)
Parameter or limit is considered if Protection is set to TN
2)
Parameter or limit is considered if Protection is set to TTrcd
3)
With Plug test cable or Plug commander Zs rcd is measured in the same way regardless
of the setting. The parameter is meant for documentation.
4)
Model MI 3152 only
Refer to
Fuse tables guide
for detailed information on fuse data.
