Delta Star Dry Type Transformer

Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of delta star dry type transformer in China. Please feel free to buy high quality delta star dry type transformer from our factory. Customized orders are welcome.

Non-encapsulated dry-type transformers are a specific type of dry-type transformer where the windings and core are

Delta-Star (also known as Delta-Wye) dry-type transformers are a specific type of transformer commonly used in electrical power distribution and various industrial applications. These transformers feature a delta-connected primary winding and a star (or wye)-connected secondary winding. This configuration is particularly useful for certain power distribution requirements.

Primary Winding - Delta Connection:

The primary winding is connected in a delta (Δ) arrangement.

This setup can handle higher currents and is effective in balancing loads in three-phase power systems.

Secondary Winding - Star (Wye) Connection:

The secondary winding is connected in a star (Y) or wye configuration.

Provides a neutral point, which is essential for grounding and for supplying power in systems that require a neutral connection.

Dry Type:

Unlike oil-filled transformers, dry-type transformers use air for cooling and insulation.

Safer in terms of fire risk and environmentally friendly, making them suitable for indoor installations.

Phase Shift:

Introduces a 30-degree phase shift between the primary and secondary circuits.

Beneficial for certain power system applications, such as harmonics reduction and load balancing.

Efficiency and Size:

Generally, dry-type transformers are less efficient in heat dissipation compared to oil-filled types, so they may be larger in size for the same power rating.

Maintenance:

Require less maintenance than oil-filled transformers, but regular inspections are still necessary to ensure integrity and performance.

Applications

Power Distribution: Commonly used in utility distribution networks for stepping down high transmission voltages to usable levels for residential or commercial use.

Industrial Settings: Suitable for factories or plants where safety (fire hazard) and environmental concerns are paramount.

Renewable Energy Systems: Ideal for solar or wind power installations where fire safety is critical.

Commercial and Public Buildings: Used in locations like shopping malls, hospitals, and schools due to their safety and low environmental impact.

Advantages and Disadvantages

Advantages: Safer in terms of fire hazards, environmentally friendly, suitable for indoor use, effective in balancing loads and reducing harmonics in power systems.

Disadvantages: Larger and potentially heavier for the same power rating compared to oil-filled transformers, might be more expensive.

In summary, Delta-Star dry-type transformers offer a combination of safety, environmental friendliness, and functional adaptability, making them suitable for a wide range of applications, especially where safety and environmental considerations are a priority.

1.Quality management system GB/T 19001-2016 ISO 9001: 2015

The operation of the whole YAWEI system is strictly controlled and managed. This ensures the quality of products and material in all stages, from receiving customer requests to design, materials, production, installation, testing, packaging, delivery, after-sales, all of which operate under strict and logically linked processes.

2.CERTIFICATEOFCOMPLIANCE of UL and CUL

YaWei pad mounted transformer have been evaluated by UL in accordance with the U.S and Canada Standard(s). Our transformer certified by UL based on Canadian standards (CSA standards) .

3.Accreditation certificate CE

Standard: EN 60076-1:2011.EN 60076-2:2011EN 60076-14:2013 confirms that YAWEI technical quality meets the requirements of all specific international standards for testing and calibration laboratories. All YAWEI products are fully tested in a qualified testing room before leaving the factory, ensuring stable quality and providing absolute peace of mind for customers.

Cover complete production line of transformer from winding wire, silicon sheet slitting and rolling, transformer oil tank producing and power transformer R&D,testing, installation and production.

Yawei automatic insulation wire wrapping line.Yawei has automatic, horizontal, vertical and manual winding lines comes up to different capacity request.

Winding on the primary and secondary windings has an excellent design structure to help the machine operate effectively.

Insulation wire wrapping line

Yawei dry type horizontal winding line

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