Aged Transformer Insulation Capability
National Grid Electricity System Operator
National Grid TO Innovation Team
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Innovation Funding Incentive
Optimisation of replacement plans and reduction of
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.