Measurement and analysis techniques are possible with a combination of sensors and processing tools to accurately assess the condition of MV switchgear components during in-service conditions.
A dielectric withstand test or “high potential” or “hipot” test is an electrical test performed on a component or product to determine the effectiveness of its insulation.
What is VLF Hipot Testing? Withstand or hipot testing is used to evaluate the condition of a cable insulation during installation, acceptance, or maintenance testing.
Off-line testing – VLF, Tan Delta and Partial Discharge process of various types of medium power cables and accessories of rating not exceeding 33 kV.
Failure of electrical switchgear can cause death, severe injury and significant damage. Switchgear failure is rare, but when it occurs, the results can be catastrophic.
To warn substation operators of electrical discharge activity either for safety reasons or as early warning to maintenance personnel.
On-line condition assessment is the ultimate solution for MV and HV electrical systems.