Partial discharge · Asset applications
Cable Partial Discharge Testing
DigiStano supports onsite partial discharge assessment of MV and HV cable systems and their accessories. Cable information, the testing objective and the available test supply determine the practical measurement scope.
Plan the measurement
Start with the asset and the question.
Tell us whether you are preparing for commissioning, investigating a concern or establishing a condition baseline.
- Cable type, rated voltage and circuit length
- Joint and termination details
- Commissioning or in-service assessment objective
- Access at cable ends and outage availability
Engineering scope
From the test plan to the findings.
Review
Review asset information and previous diagnostic evidence.
Plan
Agree the measurement scope, access and responsibilities.
Assess
Review observed activity with relevant test or operating conditions.
Explain
Discuss observations, limitations and suitable follow-up.
Project requirements
A scope you can review before the visit.
Agree the assets, measurement approach, access, applicable project specifications and reporting requirements.
Is a VLF withstand test the same as a PD test?
No. A withstand test and a PD measurement answer different questions. The test plan should state whether it requires withstand testing, PD measurement, Tan Delta assessment or a combination.
What should the report address?
Agree the reporting requirements in the proposal: asset identification, test arrangement, relevant conditions, observations, interpretation, limitations and recommended follow-up.
Before you request testing
Prepare your PD testing request
Use our checklist to share the asset details, access constraints and objective so the engineering team can scope your assessment accurately.
Start with a conversation
Plan your mv & hv cables assessment.
Tell us the asset, location and testing objective. Our engineering team will help define the next step.