Apr 2013
Electricity Transmission
Aged Transformer Insulation Capability
Apr 2013
National Grid Electricity System Operator
National Grid TO Innovation Team
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Innovation Funding Incentive
Asset Management
Optimisation of replacement plans and reduction of transformer failures.
Understanding the dielectric behaviour aged transformer insulation at high voltages may allow the better identification of the factors likely to lead to the failure of old transformers. This will allow optimum targeting of the transformer replacement expenditure and the oil and moisture care regime, to ensure system reliability at minimum cost. Transformer failures pose an environmental risk and tend to attract media attention if they involve a fire.