TRANSFORMER HAVING NOISE REDUCTION STRUCTURE

摘要

The present invention relates to a transformer having a noise reduction structure. A tank (12) forms the appearance of the transformer (10). An internal space (14) filled with insulating oil is formed inside the tank (12). A core (20) is installed inside the tank (12) by a lower frame (16) and an upper frame (18). A wire (22) is wound around the portion expended from the core (20) in a gravity direction. An insulating paper (24) is surrounded and installed on the surface of the wire (22). A ridge unit (26) and a depression unit (28) are formed on the insulating paper (24) to be extended in a height direction of the core (20). It is preferable that the inner sides of the depression units are formed in parallel to face each other. According to the present invention as above, it can be minimized that vibrations generated in the wire (22) are delivered to the insulating paper (24) installed on the surface of the wire (22) and the vibrations passing through the insulating paper (24) are delivered to the insulating oil and are mutually offset. A part of the vibrations is removed. Thus, the present invention can relatively reduce vibrations and noises generated in the transformer.