Which type of primary system is known for better voltage regulation?

The Wye system is known for better voltage regulation due to its configuration and the ability to connect to a neutral point. In a Wye system, the phases (or conductors) are connected to a common point or neutral, which helps maintain a stable voltage level across the phases. This neutral point allows for more balanced load distribution and can help mitigate the effects of fluctuations and imbalances in the system. Additionally, the Wye configuration can provide the flexibility for connecting single-phase loads more effectively while keeping the three-phase system balanced.

On the other hand, while Delta systems are useful for certain applications, they don’t have a neutral point, which can lead to less stable voltage levels and more complex load balancing challenges. Single-phase systems may not provide the same robustness and voltage regulation capability as a three-phase Wye system. Series systems are primarily used for specific applications like transmission of signals or small electrical loads and do not perform as well in terms of voltage regulation in a power distribution context.