400V To 208V 3 Phase Transformer

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A three-phase transformer is engineered to handle high-power loads using three alternating currents that are offset in phase. These transformers are used to convert primary voltages to secondary voltages in commercial and industrial applications, providing efficient and stable energy transfer with minimal losses. Most models feature dry-type, ventilated enclosures for indoor or outdoor use.

Common Applications

Commercial buildings and office parks.

Manufacturing facilities and industrial equipment.

Schools, hospitals, and data centers.

Large HVAC systems and heavy machinery.

3 Phase Transformer Winding Arrangements

The coils of 3 phase transformers are linked in either a delta or a star arrangement. These arrangements are termed as:

Star connection

Delta connection

The Star Connection

In a star connection, one terminal from each of the three windings is joined, forming a star or neutral point. This is where the neutral terminal is taken. The second terminal of all windings is taken, and power is supplied to these terminals. This configuration is known as a star connection, Y-connection, or Wye-connection because of its shape.

Delta Connection

The delta connection connects all three windings in series to form a triangle shape. The power is supplied to three junction locations. This setup has the shape of a Delta (∆). As a result, it is referred to as a delta connection or ∆ -connection. This connection is also known as a mesh connection in some instances.

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Noyark's Dry-type Transformers are a new generation of reliable, safe, environment-friendly, and energy-saving high-tech transformers. They are particularly suitable for locations with high humidity or where fire-resistance is a high priority or loads fluctuate such as airports, high-rise buildings, densely populated areas, basements, cargo ships, offshore drilling platforms and nuclear power plants, etc.

 

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