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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)
Research Types
Applied Research and Development
Science and Technology Fields
ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering)
UKERC Cross Cutting Characterisation
Not Cross-cutting
Principal Investigator
Project Contact
National Grid Electricity Transmission
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
Programme
Web Site
Objectives
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.
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Added to Database
27/09/16
