Substation fan CFZ type axial flow fan front blowing humid tropical zone

Analysis of the direction of air blowing from the axial fan side of oil immersed transformers

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Substation fan CFZ type axial flow fan front blowing humid tropical zoneThe direction of the air blown out from the axial fan side of the oil immersed transformer

Oil immersed transformer is a type of transformer and a relatively common type of transformer. It is filled with insulating oil inside, so an axial fan needs to be installed on the transformer for heat dissipation. During operation, axial flow fans can generate intake air and blow out air. Among them, the blown air can be divided into two types: frontal blowing and lateral blowing.

The direction of the air blown out from the axial fan side is generally determined based on the air circulation inside the transformer. If the air flow direction inside the transformer is horizontal, the axial fan will blow out from the side in a direction perpendicular to the axis of the transformer. If the air flow direction inside the transformer is vertical, the axial fan will blow out from the side in a direction parallel to the axis of the transformer.

Substation fan CFZ type axial flow fan front blowing humid tropical zone，The influence of axial fan blowing air on transformers

The air blown from the axial fan side has a very important impact on transformers, including the following aspects:

1. Heat dissipation effect: The side blowing air of the axial fan is very important for the heat dissipation effect inside the transformer. If the direction blown by the fan is the same as the direction of air circulation inside the transformer, it will cause the wind blown by the fan to not circulate well into the interior of the transformer, thereby affecting the heat dissipation effect of the transformer.

2. Sound level: The direction of the airflow blown by the axial fan can also have a certain impact on the sound level of the transformer. If the direction blown by the fan is the same as the direction of air circulation inside the transformer, it will produce greater noise, leading to environmental noise pollution.

3. Safety: The direction of the air blown from the axial fan side can also affect the safety of the transformer. If the wind blown by the fan cannot circulate well into the interior of the transformer, it may cause the temperature inside the transformer to be too high, leading to accidents such as fires.

In summary, the direction of the air blown from the axial fan side is crucial for the normal operation of oil immersed transformers. When installing and debugging axial fans, the direction of the fan's air flow should be determined based on the internal air circulation of the transformer to ensure the cooling effect, safety, and environmental noise requirements of the transformer.

In which direction does the transformer axial fan blow

down

The blowing direction of the transformer axial fan depends on the design of the fan, but usually blows downwards.¹²

This is because this direction can allow hot air to rise, effectively controlling the temperature inside the transformer. The main function of the transformer axial fan is to discharge the accumulated heat inside the transformer through the exhaust outlet to prevent equipment damage caused by high temperature.

Therefore, transformer axial fans usually blow air from the inside out, which can improve the heat dissipation effect and ensure the normal operation of the equipment.