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Electricity Transmission
Project Details
Documents
Ideas for future projects?
Mar 2013
Electricity Transmission
Development of Probabilistic Risk Assessment Procedure for Earthing Systems
Reference:
Status:
Live
Start Date:
Mar 2013
End Date:
Unknown
Funding Licencee(s):
National Grid Electricity System Operator
Contact:
National Grid TO Innovation Team
Click here to send a question to the contact.
Funding Mechanism
Innovation Funding Incentive
Research Area:
None
Core Technology(ies):
Modelling
Estimated Expenditure:
£254,000.00
Introduction:
Previous involvement with international earthing committees has resulted in the recognition and acceptance of a probabilistic risk based approach to earthing system design and assessment. The confidence gained from National Grid to support this approach was as a direct result of previous research that reviewed local fault levels and fault clearance times against site earth potential rise seen under fault conditions.
Objectives:
The project addresses the issue of safety and risk assessment of earthing systems. It uses a probabilistic risk assessment approach to quantify the risk involved at large substations. The model developed in this project takes into account the detailed configuration of the earthing system and the surrounding area, and it uses historical fault data. The model can be adapted to any set of standard specification and perform the risk assessment accordingly. A friendly software routing is being developed and tested to help engineers implement the model on practical substations.
Related Links
National Grid Innovation Page on Jul 15, 2013
http://www.nationalgrid.com/corporate/About+Us/Innovation/National+Grid+Innovation/
National Grid Innovation Funding Incentive and Annual Report(s) on Mar 13, 2013
http://www.nationalgrid.com/uk/Electricity/Info/IFI/