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Distribution and power transformers are both essential components in electrical power systems, but they serve different purposes within the grid infrastructure. Here are the main differences:
When compared to distribution transformers, a power transformer will often have a higher MVA rating, typically over 3150kVA.
Power transformers are used in networks with significantly higher voltage, while distribution transformers are used where lower voltages are needed.
Power transformers available in the market have various ratings ranging from 400kV, 200kV, 66kV, and 33kV. Whereas distribution transformers' ratings range from 11kV, 6.6kV, 3.3kV, 440v, and 230 volts.
Power transformers are a common feature in power generation stations and transmission substations. Meanwhile, the installation of distribution transformers is mainly in distribution stations, from this point, power is distributed for industrial or domestic purposes.
Power transformers are considerably larger in comparison to distribution transformers.
In summary, while both types of transformers perform voltage transformation, distribution transformers cater to the final voltage reduction for consumer use, and power transformers facilitate the efficient transmission and interconnection of high-voltage electricity across the grid.
