Auto Tn - Auto Test For Tn Earthing System Without Rcd - METREL EurotestXC MI 3152 Instruction Manual

MI 3152(H) EurotestXC (2,5 kV)
AUTO TN – Auto test for TN earthing system without
7.27
RCD
Tests / measurements implemented in AUTO TN
Voltage
Z line
Voltage Drop
Z loop
Rpe
Measurement parameters / limits
Fuse type
Fuse I
Fuse t
1)
I (U)
Isc factor
Limit(ΔU)
Limit(Rpe)
Ia(Ipsc (LN), Ipsc (LPE))
1)
Applicable if Fuse type is set to Off or Custom.
Refer to Fuse tables guide for detailed information on fuse data.
Figure 7.90: AUTO TN 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]
Maximum voltage drop [3.0 % ... 9.0 %]
Max. resistance [Off, 0.1  ... 20.0 ]
Minimum short circuit current for selected fuse or custom
value
153
Tests and measurements