Open Delta Transformer is a special form of transformer connection that is normally used to supply a two-phase or one-phase load in a three-phase system. However, the "3 Phase Input 1 Phase Output" configuration has a slightly more specific application area.

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The main uses of this configuration are:

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Feeding unbalanced loads:

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•   In a three-phase system, the loads may not always be evenly distributed. In this case, the open Delta transformer can be used to supply unbalanced loads in single phase.

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•   Especially in industrial plants, unbalanced loads such as motors or heaters of different sizes are frequent.

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•   It is preferred to host Mono 1-phase loads such as outdoor lighting, camera system and security containers in SPP applications.

 

​Redundant systems:

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•   In case of a problem with the main power supply, the open delta transformer can be used as a backup power supply. For example, when there is a failure in a factory main transformer, critical loads can continue to be supplied with an open delta transformer.

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Providing Flexibility:

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•   In applications that require low power, an open delta transformer may be a more economical solution.

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•   3 phase Input 1 Phase Output Open Delta Advantages of Transformer.

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•   Simplicity: Its connection is simpler than other types of connections.

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•   Flexibility: in the event of a transformer failure in the system, the system can continue to operate.

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•   Suitability for Unbalanced Loads: It is effective in feeding Unbalanced Loads. The transformer input reduces the current imbalance by 50% in 3 phases.

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  Production is carried out at input and output voltage values up to 1000 V, and additional input-output voltages can be added according to customer demand.

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  In order to avoid any mistakes in the products, the following technical specifications of Open Delta transformers are determined by mutual negotiation with the customer company. After all the details are determined, a sample transformer is produced and delivered to the customer company with routine test reports. After all the controls are made, the production is completed and the products are delivered following the approval of the customer.

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•  Nominal power

•  Input-output voltage stages

•  Current values of the output stages

•  Inlet-outlet end connection materials

•  Insulation class

•  Metal cabinet and ventilation type

•  Mounting type (horizontal-vertical)

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  OMSAN can produce dry type LV three-phase 3 Phase Input 1 Phase Output transformers up to 40 kVA power value. The input-output connections of the transformers, which are also produced with cabinets according to the needs, can be made with rail terminal blocks, device terminal blocks, skp shoes, cables or busbars.