A 250-Hp Squirrel-Cage Induction Motor Is Connected to a 560-Volt

question 7

Multiple Choice

A 250-hp squirrel-cage induction motor is connected to a 560-volt line. The motor has a nameplate current of 232 amperes and a service factor of 1. NEC Table 430.32(A) indicates that the full-load current should be increased by a factor of 115%. What is the overload size for this motor?

• A) 34.8 amperes
• B) 226.8 amperes
• C) 247 amperes
• D) 644 amperes

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