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.