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Internal dielectric strength degradation is the main risk affecting the lifetime performance of an instrument transformer. Contributing to 70% of the failures, it can ultimately cause a fire or explosion that can damage nearby high voltage assets. The degradation can be due to overheating, short circuit, oil leakage from gasket deterioration caused by tough environmental conditions, or the humidity contained in oil-impregnated cellulose insulation.

Services for Instrument Transformers

Internal dielectric strength degradation is the main risk affecting the lifetime performance of an instrument transformer. Contributing to 70% of the failures, it can ultimately cause a fire or explosion that can damage nearby high voltage assets. The degradation can be due to overheating, short circuit, oil leakage from gasket deterioration caused by tough environmental conditions, or the humidity contained in oil-impregnated cellulose insulation.