Sep 2015
Electricity Distribution
Vertical Transition Straight Joints Innovative Inspection
NIA_UKPN0010
Complete
Sep 2015
Jul 2017
UK Power Networks and London Power Networks
Lynne McDonald
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Network Innovation Allowance
None
Network Monitoring, High Voltage Technology and Condition Monitoring
£899,396.00
The project will develop an innovative product that will define the bandwidth at which HV cable joints fail. It is planned that this will be determined by performing the following activities:

  • PD data collection on HV cable joints within substations in LPN

  • Analysis of PD data to have a better understanding of partial discharge in cable joints

  • Retrieval of defective joint(s) for forensic analysis in the laboratory to have a better understanding of joint failure and to provide confidence in the reliability and performance of detection system

  • Data collected as part of the IFI project “Cable Pit Mitigation Strategy” will also be utilised

  • A final product “Canary” will be developed which will be used to monitor the health of HV cable joints within substations and cable pits to identify high risk sites for controlled repair/replacement.

The aim of the project is to successfully develop an innovative product that can monitor the health of HV cable joints and identify those at higher risk of failure for their controlled replacement, avoiding their catastrophic failure and related collateral damage which is currently a safety hazard to our staff and members of the public.

The success of the project will be judged against the four objectives described below:

  • Successful collection of PD data capture from a number of sites with HV cable joints

  • Analysis of PD captured data to define the bandwidth at which HV cable joints are at higher risk of failure

  • Retrieval of HV cable joint(s) where PD readings are deemed to be defective for forensic analysis in the laboratory

  • Development of a new product (“Canary”) that can be used for monitoring the health of HV cable joints and cable pits to detect those with high partial discharge for their controlled replacement