Final Answer:
The angular displacement of an alternative delta-wye connection is 30 degrees (b).
Step-by-step explanation:
In electrical engineering, the delta-wye (also known as delta-star) connection is a common configuration used in three-phase power systems. The standard delta-wye connection results in an angular displacement of 30 degrees between the line and phase voltages. This means that the phase voltage lags the line voltage by 30 degrees.
When considering an alternative delta-wye connection, the angular displacement remains the same at 30 degrees. This value is inherent to the nature of these configurations and is a standard characteristic of delta-wye connections.
The angular displacement is a crucial parameter in understanding the relationship between line and phase voltages in three-phase systems. It is important for engineers and electricians to be familiar with these configurations to ensure proper design, installation, and operation of electrical systems. The consistent angular displacement of 30 degrees simplifies calculations and facilitates accurate analysis in the field of power systems.