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Projects: Projects for Investigator
Reference Number NIA_NGET0157
Title EPRI Research Collaboration on Substations
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 2014
End Date 01 July 2015
Duration 18 months
Total Grant Value £2,100,000
Industrial Sectors Power
Region London
Programme Network Innovation Allowance
Investigators Principal Investigator Project Contact , National Grid Electricity Transmission (100.000%)
Web Site http://www.smarternetworks.org/project/NIA_NGET0157
Objectives Transformer Life Management (a) Maximising the diagnostic value of DGA through new gases: Develop new markers to better assess transformer risk of failure. Deliver a methodology to guide National Grid to apply these new markers. In addition, gather data on on-line DGA technologies and deliver data sets to allow for effective specification of DGA technologies to match the various situations and requirements. (b) Novel Sensor for Transformer Diagnostics The objective is to deliver optical technologies to provide non-contact diagnosis of energized bushings. Bushing failures can result in destruction of the associated transformer. Failures can also pose a health and safety risk. The objective is to assess bushing condition from a safe distance. (c) The Copper Book (EPRI Power Transformer Guidebook)The objective is to provide a regularly updated comprehensive guidebook on transformer life management. (d) Transformer Remaining Life Research - New Markers The objective is to provide a methodology on how better to assess transformer remaining life. It will also produce guidelines to help National Grid request a set of specific analyses from laboratories and effectively interpret the results. (e) Dissolved Gas Analysis Guide The objective is to provide a stand-alone, comprehensive guide on DGA (dissolved gas analysis) for power transformers - including guidance on specification of on-line analysis. (f) Transformer Forensics Database The objective is to deliver a database on forensic teardowns and the diagnostic results - allowing analysis on how diagnostic predictions aligned with actual conditions. Protection & Control Relay mal-operations can adversely impact system operation and disrupt electric service. This project aims to develop new methodologies, processes, and tools to assist utilities in the efforts of reducing complexity, human error and cost in protection system maintenance and asset management, prevention of relay miss-operations through effective configuration management processes, improving reliability and sustainability of utility industry’s mission-critical protection and control infrastructure. SF6 Management and Gas Insulated Substations Research on Sulphur hexafluoride (SF6) for breakers and GIS/GIL is focused on improving handling, enhanced diagnostics and reducing leaks. It does so delivering the following objectives: Leak reduction technologies (both for sealing and for high sensitivity leak detection)Research on diagnostics focusing on both gas analysis techniques and on partial discharge techniques (especially for GIS/GIL). Improved diagnostics to significantly improve the reliability of electricity supply. Research on handling issues such as live filling for increased worker safety. Specific outputs for 2014, Transformer Life Management include: Report reviewing how diagnostic value of DGA through new gases may be maximised. Latest technology developments updated in the 2014 version of the Copper Book, a power transformer guidebook. Report reviewing new markers for the determination of transformer remaining life. Guidance on how to best to use dissolved gas analysis in transformers. Report detailing the output from the development and testing of novel sensors for transformer diagnostics. Software database with all transformer forensic studies done to-date and new data fields. Specific outputs for 2014, Protection and Control include: Industry wide Performance Database for Protective Relays. Application Guidelines of Configuration Management for Protection and Control Systems. Technologies and Application Guidelines for Condition Based Protection System Maintenance. Specific outputs for 2014, SF6 Management and Gas Insulated Substations include: Technical report detailing output of trials of SF6 Capture Technologies at Littlebrook substations. Technical report describing Alternatives to SF6 Technology in Power Delivery: Status of Research Gas Insulated Substations and Lines Guidebook detailing the whole life-cycle of SF6, GIS and GIL and specifically determining the following areas: Top 4 Degradation Mechanisms and Potential Failure Modes Aging, Corrosion, or Improperly Maintained Components of Switching Device Mechanism Deterioration (Corrosion) of Flanges and O-rings Tracking on the Surface of Spacers Excessive Thermal Overload Operation of GIS Equipment
Abstract The electricity industry faces challenges that National Grid recognises are more cost-effectively and efficiently dealt with through international collaboration initiatives. In particular, challenges whose solutions require statistically diverse data sets and/or significant trialling and testing in different environments, under various conditions and/or diverse ways. The Electric Power Research Institute (EPRI), with its wide international membership, is one of the routes through which these initiatives can be delivered and stakeholder value maximised. This approach of managing collaborative projects is beneficial to National Grid and our customers, providing valuable information, learning and knowledge, which would be more expensive to formulate on an individual basis. In 2014, a benchmarking exercise by National Grid has determined the largest leverage within Substations for the UK consumer is achieved through involvement in both the transformers, SF6 management and the protection and control programmes. Transformer Life Management The transformer programme is looking at five themes to improve the knowledge and methodology for managing these assets: Developing novel optical sensors and analytics to determine the condition and deterioration curves of the assets. Collating worldwide knowledge and experience. Understanding root-cause of failure and ageing mechanisms through forensic studies. Developing improved methods for end-of-life estimation. Reducing transformer failures through new markers for dissolved gas analysis (DGA). Protection and Control The focus of this research project is on three broad themes: Identifying enabling technologies and developing new approaches to use protective relays for condition assessment; Applying standard-based approaches to improve configuration management for relay settings and associated documentation; Developing industry wide relay performance database to support relay fleet and asset management. SF6 Management and Gas Insulated Substations The SF6 research project is looking at several themes delivered through two main routes: Scaled laboratory testing and field trials at one substation Engagement in industry, academic, and regulatory groups to understand the issuesNote : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above
Publications (none)
Final Report (none)
Added to Database 14/08/18