Projects
Projects: Projects for Investigator |
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| Reference Number | NIA_NGET0015 | |
| Title | Dinorwig Thermal Cycling and Cable Rating | |
| 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 |
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| Award Type | Network Innovation Allowance | |
| Funding Source | Ofgem | |
| Start Date | 01 February 2013 | |
| End Date | 01 January 2017 | |
| Duration | 49 months | |
| Total Grant Value | £370,000 | |
| 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_NGET0015 |
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| Objectives | The desired results for this project are to improve the accuracy and understand the effects of thermal cycling on stop joints. This project will be successful if we increase the knowledge and understanding around the thermal cycling effects on stop joints. | |
| Abstract | The 400kV electricity connection for Dinorwig Power Station over recent years has suffered from poor reliability problems associated with abnormally high Dissolved Gas levels in the cable fluid. These levels have forced NGET to switch out the Dinorwig-Pentir 1 circuit in 2012 resulting in a circuit outage to replace the ‘gassing’ stop joint accruing BSIS costs of circa £150k per day. An identical issue occurred in 2011 on the Dinorwig-Pentir 2 circuit with identification of another ‘gassing’ stop joint. These incidents have prompted an action to probe further into the likely root cause as well as further studies to understand the resultant effects (pertaining to stop joints) from an aspect of thermal cycling. National Grid will install condition monitoring on existing stop joints on the Dinorwig Cable Circuit. This data will be observed and monitored, and then the temperature data will be coupled with system records of circuit load. This merged data will then be used to validate updated Finite Element Analysis models of joint bays and compared to existing methods. This difference (if any) will be then identified and analysed.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above | |
| Publications | (none) |
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| Final Report | (none) |
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| Added to Database | 09/08/18 | |
