Voltage rises in the immediate area of electrical systems can be extremely dangerous in the event of a fault. Grounding systems must therefore be checked regularly. Significantly more reliable results than just visual inspections of the grounding system can be obtained by measuring the ground impedance as stipulated in international standards such DIN VDE 0101, CENELEC HD 637 S1 or in line with IEEE 80-2000, IEEE 81-1983 and IEEE 81.2-1991. However, the data available for calculating these values is often not very accurate, so direct measurement is by far the better approach for determining these values.
Conventional ground impedance testing methods that work at line frequency require extremely large and very powerful devices as well as complex processes to bypass the problems caused by line frequency interference. With the multifunctional CPC 100 primary testing system in connection with the CP CU1 coupling unit, OMICRON has developed a measuring system that overcomes this problem, while at the same time delivering extremely precise results.
Learn more about OMICRON's solutions in the area of Ground Impedance Measurement
CPC 100 + CP CU1
Ground impedance measuring system
