Auto Tn (Rcd) - Auto Test For Tn Earthing System With Rcd - METREL EurotestXC MI 3152 Instruction Manual

MI 3152(H) EurotestXC (2,5 kV)
AUTO TN (RCD) – Auto test for TN earthing system
7.26
with RCD
Tests / measurements implemented in AUTO TN (RCD)
Voltage
Z line
Voltage Drop
Zs rcd
Rpe rcd
Measurement parameters / limits
Fuse type
Fuse I
Fuse t
1)
I (U)
Isc factor
I test
Limit(ΔU)
Limit (Rpe)
Ia(Ipsc (LN), Ipsc (LPE)) Minimum short circuit current for selected fuse or custom
1)
Applicable if Fuse type is set to Off or Custom.
Refer to Fuse tables guide for detailed information on fuse data.
Connection diagram
Figure 7.87: AUTO TN (RCD) menu
Selection of fuse type [Off, gG, NV, B, C, D, K, Custom]
Rated current of selected fuse
Maximum breaking time of selected fuse
Rated current for U measurement (custom value)
Isc factor [0.20 ... 3.00]
Test current [Standard, Low]
Maximum voltage drop [3.0 % ... 9.0 %]
Max. resistance [Off, 0.1  ... 20.0 ]
value
Figure 7.88: AUTO TN (RCD) measurement
151
Tests and measurements