Transformer Vacuuming Process

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Vacuuming the transformer using a Transformer Vacuum Plant


Before oil filling is started, a final check is made for the tightness of the transformer tank by applying vacuum. When vacuum is applied to a transformer without oil, a leakage test must be carried out to ensure that there are no leaks in the tank which would result in wet air being drawn into the transformer.


Using a vacuum in this process eliminate moisture and provides deeper penetration of insulation into transformer cavities.

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