MI 3152(H)
Eurotest
XC (2,5 kV)
Tests and measurements
158
Connection diagram
Figure 7.97: Z auto measurement
Measurement procedure
Enter the
Z auto
function.
Set test parameters / limits.
Measure the impedance Zref at origin (optional), see chapter
Connect test cable to the instrument.
Connect test leads or Plug commander to the object under test, see
Start the test.
Save results (optional).
Figure 7.98: Example of Z auto measurement results
Measurement results / sub-results
Uln
Voltage between phase and neutral conductors
ΔU
Voltage drop
Z (LN)
Line impedance
Z (LPE)
Loop impedance
Zref
Reference Line impedance
Ipsc (LN)
Prospective short-circuit current
Ipsc (LPE)
Prospective fault current
Uc
Contact voltage