Sep 2015
Electricity Distribution
Pressurised Cable Active Control and Monitoring
NIA_UKPN0012
Complete
Sep 2015
Mar 2019
UK Power Networks, Eastern Power Networks, London Power Networks and South Eastern Power Networks
Maxi Faridi
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Network Innovation Allowance
ED - Network improvements and system operability
Asset Management, Control Systems, Environmental, Health and Safety and Maintenance & Inspection
£1,075,600.00
This project will be applicable to all pressurised cables running at 33kV, 66kV and 132kV.

For the purpose of the trial cables selected will be oil-filed and those that have a history of regular leaks.

The objective of this project will be to reduce leakage from pressurised cables, by operating oil-filled cables at lower pressure, to such an extent that their operational life can be extended. This will result in fewer pressurised cables requiring replacement and so a lower cost to the customer for the maintenance of the electricity network.

This will be done by developing and installing a system using equipment to actively reduce cable pressures to the minimum operating pressure at all times. Specifically there are five objectives within this project:

  • Identify minimum operating conditions for pressurised cables (pressure, load, oil temperature, external temperature)
  • Develop control strategy to identify required control and monitoring points
  • Develop control system to be deployed on selected cable sections
  • Implement control system
  • Active control of cable pressures , leading to a reduction in leakage
The success of the project will be judged against the six objectives described above:
  • Identify minimum operating conditions for pressurised cables

  • Develop control strategy to identify required control and monitoring points

  • Develop control system to be deployed on selected cable sections

  • Implement control system

  • Active control of cable pressures , leading to a reduction in leakage

  • Improved Health Index through better management of fluid leakage and thus Health Index improvement on FFCs.