What type of transformer is utilized at the high side in the (67000-2400/4160Y) specification?

The specification (67000-2400/4160Y) indicates a transformer configuration involving different voltage levels, specifically using the Wye (or star) connection on the low side and a more common Delta connection on the high side. In many utility applications, transformers are configured to allow for efficient power distribution and to meet specific phase shifting and voltage requirements.

In this case, the high side configuration often allows for a Delta connection to balance loads and provide a robust means of handling three-phase power. However, combining Wye and Delta configurations is also standard practice to take advantage of their individual benefits, such as grounding and improved voltage regulation on the lower voltage side.

Thus, the utilization of both Wye and Delta configurations in high-voltage distribution systems is common. It enables the transformer to perform optimally across different load conditions and for various types of network connections, making both connections viable choices.

The incorporation of multiple configurations also allows for adaptability in the system, ensuring it can handle various types of loads and environmental conditions effectively. This comprehensive understanding of different transformer configurations and their specific advantages supports the conclusion that both Wye and Delta types can exist at the high side in such a specification.