Three Phase Pole Mounted Transformer

Three-phase pole-mounted transformer are a type of distribution transformer mounted on an electric service pole made of wood or concrete. They are typically positioned at the level of the upper wires.

Three-phase pole-mounted transformer are rated in the range of 16 kVA to 100 kVA. They can step down voltages from 11,000 to 33,000 volts to a lower voltage of 400 volts. Typically, home distribution systems and low-volume commercial sites in rural areas utilize pole-mounted transformer.

3 Phase Pole Mounted Transformer

Pole Mounted 3 Phase Transformer

Voltage Transformation:

The primary function of the transformer is to convert higher voltage electricity from the distribution lines to lower voltage levels suitable for local consumption. Typically, these transformer step down voltage from medium voltage to low voltage (e.g., from 7.2 kV or 12.47 kV to 120/240 volts).

Phases:

Pole-mounted distribution transformers can be designed for single-phase or three-phase power distribution. Single-phase transformer are commonly used in residential areas, while three-phase transformers are more common in commercial and industrial settings.

Enclosure and Weatherproofing:

The transformer are housed in weather-resistant enclosures to protect them from environmental elements such as rain, snow, and sunlight. These enclosures are designed to withstand outdoor conditions and ensure the transformers' longevity.

Cooling:

Cooling methods may include natural convection or forced air cooling. Some transformers have cooling fins or other features to dissipate heat efficiently.

Capacity:

Pole-mounted distribution transformer come in various capacities, ranging from a few kVA to several tens of kVA, depending on the specific requirements of the distribution area.

Connections:

These transformer have primary and secondary windings, and the connection configuration is determined by the specific distribution requirements. The primary winding is connected to the distribution line, and the secondary winding supplies power to the end-users.

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