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Projects: Projects for Investigator
Reference Number NIA_NGET0072
Title Alternative Differential Unit Protection for Cable only and Cable & OHL Hybrid Installations
Status Completed
Energy Categories Other Power and Storage Technologies(Electricity transmission and distribution) 100%;
Research Types Applied Research and Development 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Project Contact
No email address given
National Grid Electricity Transmission
Award Type Network Innovation Allowance
Funding Source Ofgem
Start Date 01 January 2012
End Date 31 January 2014
Duration 25 months
Total Grant Value £112,000
Industrial Sectors Power
Region London
Investigators Principal Investigator Project Contact , National Grid Electricity Transmission (100.000%)
Web Site http://www.smarternetworks.org/Project/NIA_NGET0072
To report on the practicalities reliability and potential benefits of implementing alternative non conventional current sensors.
Expected Benefits: To identify potential of implementing non conventional current sensors across the transmission network.
Abstract This R&D Project aims :
  • To evaluate the practicability, reliability and benefits of implementing alternative non conventional current sensors (i.e. Rogowski coil) based differential unit protection for Cable systems (i.e. Cable only and Cable & OHL hybrid installations) over conventional Current Transformer (CT) based protection. To carry out the preliminary evaluation a pilot installation is recommended on Pitsmoor-Wincobank cable circuit on April 2012 as monitoring unit.
  • To determine the systems suitability to be utilised as Emergency Return to Service (ERTS) system.
    This will help to formulate a technical and operational knowledge base for Non Conventional Instrument Transformer (NCIT) protection systems which could lead to evaluation of future technical and procurement strategy to deploy as replacement and/or new Cable system protection.
Publications (none)
Final Report National Grid Electricity Transmission (2014) Closedown report (PDF 49 KB)
Added to Database 27/09/16