Centrifugal fan for dry-type transformer

If the centrifugal fan of the dry-type transformer is well done, the temperature can be better adjusted, so what are the key ways for the manufacture and installation of the centrifugal fan of the common dry transformer? Let me take you to understand it!

1. The refrigeration centrifugal fan is generally installed on the side of the lower clamp of the dry-test transformer, and the strong cold air below and outside is blown into the electromagnetic coil of the dry-test transformer, so that the dry-test transformer can be adequately cooled. When installing, it is necessary to follow the inlet Angle of the refrigeration centrifugal fan (the Angle of intersection with the level is about 135°) and the part of the air vent, so that the output wind of the centrifugal fan can smoothly enter the air duct between the high and low voltage electromagnetic coils of the dry test transformer, and then the actual heat removal effect is better.

2. The installation of the refrigeration centrifugal fan generally uses the lower support point type. This installation method is to make the support frame into a structure and fix it on the clamp or the support foot, and then install the centrifugal fan on the structure. In order to better reduce the vibration of the centrifugal fan, vulcanized rubber blocks should be placed on the bottom pad of the foot during installation.

3, in order to better not harm the exhaust air volume of the refrigeration centrifugal fan, the installation of the air inlet (refers to the outside side) should be maintained with the closed obstruction of a certain distance (generally not less than 10 cm), so that the centrifugal fan air supply smooth, it is proposed that the centrifugal fan air inlet around the housing should be opened.