Regardless of the number of poles found inside the stator of a three phase alternator, designers will usually specify which type of internal connection? 

The following question is based on information obtained from the Wildi textbook, Chapter 16

When dealing with large scale power generation, large machines produce a significant amount of power and as such they will invariably experience a high amount of temperature rise that will affect the machines performance and its service life.

According to Wildi, what is the maximum value of temperature rise in degrees Celsius any type of motor, generator or transformer should be limited to?

Note: Type in your numerical answer in the field below, do not use letters or special characters.

Based on the textbook readings, there are three factors that influence the output voltage of a generator. What is the most common practice that utilities use to adjust the terminal voltage being transmitted to the infinite bus, that will not affect the generator's operating frequency.