The online condition assessment technologies with large bandwidth and memory, is capable of acquiring the entire pulse shape of a large number of partial discharge signals, allowing deep partial discharge (PD) analysis to be performed. The acquisition units are provided with ultra-wide bandwidth acquisition systems, which collects not only PD pulse peak and phase (as it is done by the digital instrumentation commonly available), but also the PD pulse waveforms.
Resource Category: TechTalks
Online Condition Assessment of Feeder Cables
The online condition assessment technologies with large bandwidth and memory, is capable of acquiring the entire pulse shape of a large number of partial discharge signals, allowing deep partial discharge (PD) analysis to be performed.
Advanced Online Condition Assessment
Online condition assessment is the ultimate solution for MV and HV electrical systems.
Online condition assessment technologies with large bandwidth and memory, is capable of acquiring the entire pulse shape of a large number of partial discharge signals, allowing deep partial discharge (PD) analysis to be performed. The acquisition units are provided with ultra wide bandwidth acquisition systems, which collects not only PD pulse peak and phase (as it is done by the digital instrumentation commonly available), but also the PD pulse waveforms.
Handheld Scanning Technologies
To warn substation operators of electrical discharge activity either for safety reasons or as early warning to maintenance personnel.
MV Switchgear | The Art of Prediction
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.
Introduction | Offline VLF, Tan Delta and Partial Discharge Mapping
Offline testing – VLF, Tan Delta and Partial Discharge process of various types of medium power cables and accessories of rating not exceeding 33 kV. The processes must be implemented according to SANS 10198 specifications
Introduction | Offline VLF – 50 Hz AC Testing
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.
Introduction | Offline DC Hipot Testing
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.
Partial Discharge Sensors
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. To improve the sensitivity of PD measurements, different techniques/methods have been developed for both laboratory and on-site applications. All these methods can be divided into conventional and so-called unconventional PD measurement methods.