Principle Of Operation - LEM UNILAP GEO X Manuel D'utilisation

4.

Principle of Operation

Purpose: Testing the resistances of individual ground connections in systems with
parallel ground connections (multi-grounded systems).
Equivalent diagram
Ersatzschaltbild
A
AC Source
U
—— = R X + —————————–––––––
I
Adapter for stakeless ground testing
A640311 GA1 Z REV 1
I
U
R R R
x 1
1
1 1
—— + —— + ... + ——
R1 R2
R
2 3
1
Rn
Principle of Operation
R R
n-1 n
11