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MI 3152(H) EurotestXC (2,5 kV)
Connection diagram
Measurement procedure
Enter the AUTO TN function.
Set test parameters / limits.
Measure the impedance Zref at origin (optional), see chapter
7.14 Voltage Drop.
Connect test cable to the instrument.
Connect test leads or Plug commander to the object under
test, see Figure 7.91.
Start the Auto test.
Save results (optional).
Figure 7.92: Examples of AUTO TN measurement results
Measurement results / sub-results
Uln
Voltage between phase and neutral conductors
ΔU
Voltage drop
Z (LN)
Line impedance
Z (LPE)
Loop impedance
Rpe
PE conductor resistance
Zref
Reference Line impedance
Ipsc (LN)
Prospective short-circuit current
Ipsc (LPE)
Prospective fault current
Figure 7.91: AUTO TN measurement
154
Tests and measurements
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