Respirators used in power transformers for cooling insulation oil

摘要

The present invention relates to a respirator used in a power transformer for cooling insulation oil and, more specifically, to a respirator used in an electric power transformer for cooling insulating oil by separating a silica gel to filter insulating oil included in oil mist inside a transformer when the oil mist is discharged to a respirator side in order to control the internal pressure of the transformer, from a silica gel to be used as a dehumidifier when supplied after performing dehumidification by introducing external air through the respirator in order to control the internal pressure of the transformer and also totally separating a discharge passage of the oil mist from an introduction passage of the external air. Therefore, the respirator can increase the service life of silica gels, enhance convenience in maintenance, and promote cost reduction.