How would a transformer rated at 2400/4160Y-120/240 be connected to a 4160 volt 3-phase 4-wire system?

The transformer rated at 2400/4160Y-120/240 is set up to be connected to a 4160 volt 3-phase 4-wire system through a wye configuration. The notation "4160Y" indicates that the primary side of the transformer operates as a wye connection.

In wye configuration, each phase of the transformer is connected to a common neutral point, allowing for a stable and balanced load distribution on the system. This arrangement is particularly suitable for 3-phase 4-wire systems, as it provides a neutral point from which single-phase loads can be derived, which is critical for systems delivering both three-phase and single-phase power.

Connecting the transformer in this manner ensures that the secondary voltages, which are 120/240 volts, can be accessed effectively, supporting both residential and commercial loads that require different voltage levels. The wye connection also helps maintain phase balance and minimizes the risk of overheating and damage to the transformer under varying load conditions.

In summary, using a wye connection aligns perfectly with the specifications and requirements presented by the transformer rating and the 3-phase 4-wire system.