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Projects: Projects for Investigator
Reference Number NPG_NIA_043
Title Step Up Transformer
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
Northern Powergrid
Award Type Network Innovation Allowance
Funding Source Ofgem
Start Date 01 March 2023
End Date 31 December 2023
Duration ENA months
Total Grant Value £330,000
Industrial Sectors Power
Region Yorkshire & Humberside
Investigators Principal Investigator Project Contact , Northern Powergrid (99.998%)
  Other Investigator Project Contact , Northern Powergrid (Northeast) Limited (0.001%)
Project Contact , UKPN London Power Networks plc (0.001%)
  Industrial Collaborator Project Contact , UK Power Networks (0.000%)
Project Contact , Northern Powergrid (0.000%)
Web Site https://smarter.energynetworks.org/projects/NPG_NIA_043
Objectives "Using an impedance earthing inversion trailer unit, the following are proposed:* an assessment of impedance earthing and a comparison with solid earthing (in the form of a written report)* the discussion of protection implications (modelling determining reliability, stability, and safety)* recommendations for other safety measures (insulated or conductive matting, building on some recent experiences with SPEN and others in this regard).* Trial of an inversion trailer unit and tests will be conducted at a facility where a variety of faults (or line energisations) can be applied to the system. The resulting EPR (earth potential rise), protection operation times, and safety voltages can be measured to ensure practice aligns with theoretical/modelled values and to give confidence in the reliable operation of the system. " "The project includes theoretical modelling, which will be undertaken to explore the viability of the proposed approach.Equipment development will utuilise UKPNs inversion trailer for prototype development and testing at PNDC.Comparison of the equipment testing results against theoretical models will be undertaken leading to the production of a high-level specification and report detailing list of recommendations with a view to post-project field implementation. " "Key objectives are as follows:*Complete desktop research on worldwide operations of unearthed or ASC/Petersen coil earthed systems*Create model 11kV system to represent typical overhead line networks and complete system studies.*Determine parameters for testing and test plan.*Testing of Inverter/Transformer and Protection Configuration*Analysis of Results & Comparison against Theoretical models*Develop technical specification for the inversion transformer unit*Produce report consisting of the earthing methodology, focusing on practicalities of impedance earthing, and a comparison with solid (low impedance) earthing. "
Abstract An alternative operational approch to connecting generators to OHLs under emergency outage coinditions.
Publications (none)
Final Report (none)
Added to Database 12/10/23