Auto-type transformers are employed in various three-phase systems that necessitate voltage transformation without galvanic isolation. These transformers offer a more compact design and are more cost-effective than isolation-type transformers with comparable power ratings. While the physical dimensions of isolation transformers remain unchanged regardless of the voltage values, the dimensions of auto-type transformers adapt according to these voltage levels.

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       Our company manufactures transformers with input and output voltage values of up to 1000 V, and we are prepared to accommodate additional voltage specifications based on customer requirements. To ensure the quality and precision of our products, the technical specifications for auto-type transformers are established through mutual agreement with the customer. Once all relevant details are finalized, a sample transformer is produced and delivered, along with routine test reports. After completing all necessary inspections, mass production commences, and products are made available after the customer's approval.

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       The specifications may encompass the following:

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• Nominal power

• Input and output voltage levels

• Output stage current values

• Winding vector connection group (e.g., delta, star, zigzag)

• Input-output connection materials

• Isolation class

• Metal casing and ventilation type

• Mounting type (horizontal or vertical)

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      At OMSAN, we can produce dry-type low-voltage three-phase auto-type transformers with power ratings of up to 1000 kVA. Depending on the customer's preferences, the transformers’ input and output connections can be configured using rail terminals, device terminals, cable lugs, cables, or busbars.