Selecting motors with a service factor greater than ____ allows for cooler winding temperatures at rated load, protects against intermittent heat rises, and helps to offset low or unbalanced line voltages.
A) 1
B) 10
C) 100
D) 1,000

Question

Quizplus · Accepted Answer

Motors with a service factor greater than 1 have the capacity to handle higher loads temporarily without overheating, thus providing a margin of safety against unexpected conditions such as cooler winding temperatures at rated load, protection against intermittent heat rises, and compensation for low or unbalanced line voltages.

Selecting Motors with a Service Factor Greater Than ____ Allows