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Reference Number NIA_ENWL006
Title Sentinel
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
Electricity North West Limited
Award Type Network Innovation Allowance
Funding Source ENA Smarter Networks
Start Date 01 September 2015
End Date 01 September 2019
Duration 48 months
Total Grant Value £4,000,000
Industrial Sectors Power
Region North West
Programme Network Innovation Allowance
Investigators Principal Investigator Project Contact , Electricity North West Limited (100.000%)
Web Site
Objectives ; To install a range of fault location equipment expected to cover two main techniques i.e. impedance based and travelling wave. ; To develop preferred methods for the installation of distance to fault systems including both equipment at the primary substation and distributed devices such as sensors on OHLs etc. This will include an assessment of the preferred location of the sensors and where/how precisely these sensors will be connected to the system. ; To compare and contrast the performance of the different techniques and/or different manufacturers against the different network types. The results of these trials will be used to inform specification and engineering policy for the application of HV distance to fault to UK distribution networks. 1. Development of functional specifications for fault location technologies2. Successful deployment of fault location techniques3. Specification for the integration of results from trial equipment into a central dashboard4. Verification of the accuracy of the techniques by confirming the fault location5. Understanding of how each technique works for the different network types
Abstract DNOs have committed to improve customer service for all their stakeholders and Electricity North West’s innovation strategy has customer service as a central theme. This includes keeping our customers better informed and offering new services and choice to customers while meeting the demands for improved quality of service. In recent years DNOs have come under scrutiny for their customer service particularly in respect to fault response during storms. Storms mainly affect the rural areas of our network which are predominantly constructed from long lengths of overhead line with many branches. Traditionally when a fault occurs on a rural network it can be difficult to locate. Fault location on these networks normally involves staff patrolling a line either by foot or vehicle which increases the time to locate and subsequently time to restore supplies. Customers in rural areas affected by prolonged loss of supply could be reluctant to adopt low carbon technologies as this will increase their reliance on the electricity network which they may view as less reliable than those customers in urban areas. As well as impacting the availability of supply these faults can also become a safety hazard if not detected and repaired. Issues associated with broken conductors or pole cross arm connections which can result in conductors dropping onto objects below the line can be particularly hazardous and are sometimes difficult for traditional protection to detect. In order to improve customer service, particularly to those affected by storm outages, and increase the confidence in the electricity network, we need to investigate alternative methods to assist with identifying the location of faults on overhead networks. Electricity North West proposes to trial two different techniques for fault location, namely impedance based and voltage gradient. New advanced fault sensing technology which will allow detection of high impedance faults, typically associated with broken conductors, will be developed and deployed. The two techniques will be trialled on a variety of network types e.g. radial, meshed, of varying line lengths (including those with sections of cable), resistance earthed, compensation earthing or solidly earthed. This will allow understanding of the performance of the techniques and which technique suits which network type. The Project will also provide a demonstration of how the different systems can be integrated into one central dashboard. By developing novel fault location sensors which enable earlier detection and response to broken or damaged conductors, this Project will be able to improve the quality of supply for customers who experience weather related outages and improve the safety of the electricity distribution system.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above
Publications (none)
Final Report (none)
Added to Database 14/12/18