Cable Installation Design & Innovation Project (CIDIP)

Completed

Other Power and Storage Technologies(Electricity transmission and distribution)

Applied Research and Development

ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering)

Not Cross-cutting

Project Contact
National Grid Electricity Transmission

Network Innovation Allowance

Ofgem

01 October 2013

01 January 2015

15 months

£200,000

Power

London

Network Innovation Allowance

Project Contact, National Grid Electricity Transmission

The objective of this project is to determine the design principles that would allows 400kV circuits with two cables per phase to match the ratings of a standard 400kV OHL. The project will be successful if National Grid have an increased learning in the area of uprating underground transmission routes. This could be successful delivery of each of the work packages detailed above, or highlighting what area is a cause for concern and identifying further work needed in that area.

National Grid have a need to underground transmission routes, based on consumer consultations and existing wayleaves. The problem that National Grid face is that undergrounding transmission routes is expensive and complex. A recent report commissioned by the IET, performed by Parsons Brinckerhoff, found that it may be possible to transmit the same amount of power through 2 cables per phase, as is transmitted through a standard OHL. National Grid need to conduct some work, as detailed below, to back up these findings. Research The method proposed is as follows: Potential Benefits from large conductor designs Ratings Improvement through installation Improved modelling techniques for Directional Drills Review of 105c short term operation Cost benefit analysis Summary report and industry workshopNote : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above

26/04/18