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Projects: Projects for Investigator
Reference Number NIA_NGET0207
Title Development of Tools for the Assessment and Control of Impressed Voltage
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 May 2017
End Date 01 November 2018
Duration 18 months
Total Grant Value £80,000
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_NGET0207
Objectives The first objective of this project is to produce recommendations on the potential use of live detectors for impressed voltage purposes at transmission level, by way of a desktop study and site trials. The second objective is to design, test, and produce a solution suitable (impressed voltage clamp) to ensure safe mitigation of all foreseeable / known impressed voltage scenarios within either a substation or overhead line site. There are two success criteria for this project: create a shortlist of suitable live detectors for impressed voltage purposes at transmission levels develop and successfully test a solution suitable (impressed voltage clamp) to ensure the safe mitigation of all foreseeable / known impressed voltage scenarios within either a high voltage or low voltage substation.
Abstract Within a typical National Grid substation, the magnitude of impressed voltage (IV) could be significant enough to cause personal harm and/or, in extreme cases, fatality. Although for most of the scenarios, IV normally only causes nuisance, shocks and startles, secondary consequences could still be not only unpleasant but also harmful. Therefore, there is a need for the detection of and mitigation against IV on all transmission and distribution networks. National Grid has identified an opportunity to improve our understanding of impressed voltages and have identified recognisable value in developing a tool kit for measuring and improving the way we mitigating the risks from IV within high voltage and low voltage substations. Current tools available for this purpose have proved difficult to use due to being rated above the expected duty as well as being inflexible. National Grid also seeks to improve its understanding of impressed voltage live detectors at 275 and 400 kV, which until now have only been tested at distribution levels. This project seeks to advance the knowledge and understanding of the existence and the magnitude of impressed voltage within either a high voltage or low voltage substation and overhead line working environment, by way of a desk top study to identify potential live detectors, which can be used to detect electrified equipment within a substation, that could be used for either live or charged plant. Site trials will follow to prove the feasibility of adopting live detectors at transmission level. This project also seeks to design, build a prototype and test a clamp which would be able to assist with the need to for the control of earthing and bonding against impressed voltages.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 09/08/18