Do you get the most out of your scheduled shutdowns?
Your rotating machines are perhaps the most production-critical assets in your network, and a failure could lead to unplanned outages that cost your business through loss of production.
We can run a series of quick, highly-sensitive Offline tests during your routine shutdowns, to help you prevent such costly failures.
Fit these tests at the commissioning stage or into your planned outages on a regular basis to trend the insulation condition over time, allowing you to create an efficient Condition-Based Maintenance plan, rather than a plan based on an asset’s projected lifespan. Ultimately this will save you money and eliminate in-service failures.
Partial Discharge Testing
- Partial Discharge (PD) testing is considered the best early warning indicator of the deterioration of the winding insulation.
- The measurements are sensitive to deterioration processes that can occur within the winding insulation.
- PD measurements feature the required sensitivity to detect localised defective areas from an early developing stage.
Tangent Delta (TD)/Power Factor (PF)
- Tan Delta or Power Factor testing is a precise and non-destructive test that measures the losses in the winding insulation.
- Trending the TD/PF measurements over time can provide a means of insulation condition assessment.
- Similar to IR/PI measurements, TD/PF measurements are indicative of the insulation condition of the whole winding.
Insulation Resistance (IR) and Polarisation Index (PI)
- IR and PI measurements are among the most widely used tests for the evaluation of the insulation condition of the stator winding of rotating machinery.
- A voltage is applied through your rotating machine windings for one minute in order to measure the condition of the insulation.
- With over 80 years of applicability, IR/PI measurements are an excellent and fast way to roughly assess the overall insulation condition of a rotating machine.
During the turnaround service, or any planned outage of your network, we provide permanent installation of HFCT or HVCC sensors to allow convenient On-line PD Continuous Monitoring or spot testing in the future.