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)motor

  • 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.

 

 

 

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CASE STUDY
  • On-line Partial Discharge Testing and Monitoring of 11 kV Switchgear for an Australian Mining Operator View case study
  • Continuous On-Line PD monitoring of 20+ year old Ex/ATEX 10 kV motors to support Reliability Based HV Asset Life Extension View case study
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PUBLISHED PAPERS
  • Utilising Holistic Condition Monitoring on MVIHV Motors to Reduce Unplanned Downtime Download
  • On-line Partial Discharge Condition Monitoring of Complete Networks for the Pulp and Paper Industry: Challenges and Solutions Explained Through Case Studies Download
  • A Novel Solution for the Reliable On-Line Partial Discharge Monitoring (OLPD) of VSD-Operated EX/ATEX HV Motors Download