How to install cross-flow cooling fan of dry-type transformer
March 15, 2023
The core of the fan rotor of dry-type transformer is made of cold-rolled silicon steel sheet; Low noise bearing; The impeller is treated with aluminum alloy surface electrophoresis, and then adjusted by fine dynamic balance; The left and right end plates are stamped with stainless steel plates, and the air plate, air outlet plate and air guide plate are combined with aluminum alloy profile buckles; The whole fan has reasonable structure, beautiful shape, large air volume, low noise, low temperature rise, long service life, stable operation and convenient installation.
Working principle
Dry-type transformer fan When this series of cooling fan is used for dry-type transformer, the fan is placed on both sides of the lower part of the transformer coil, and the cold air is directly blown into the coil and low-voltage cooling air duct of the transformer. The cooling effect is obvious, which can ensure the normal operation of the transformer and extend its service life. (The functions of fan start and stop, temperature alarm and temperature trip of transformer are provided by temperature control device).
Installation steps
1. The cooling fan is generally installed next to the lower clamp of the dry-type transformer, blowing the cold air at the bottom and outside into the coil of the dry-type transformer, so that the dry-type transformer can be fully cooled. During installation, according to the air outlet angle of the cooling fan (about 135 ° from the horizontal) and the position of the air outlet, the wind energy of the fan can smoothly enter the air duct between the low voltage coils of the dry-type transformer, so as to achieve the heat dissipation effect *.
2. The cooling fan is generally installed with lower foot support. This installation method is to make the underframe into a frame and fix it on the clamp or foot, and then install the fan on the frame. In order to reduce the vibration of the fan, rubber blocks should be placed under the feet during installation.
3. In order not to affect the air output of the cooling fan, the air outlet (referring to the outer side) shall be kept at a fixed distance (generally not less than 10cm) from the closed obstacles during installation to ensure the smooth air flow of the fan. It is recommended that the enclosure near the air outlet of the fan be ventilated
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March 15, 2023
