Q
If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor_____________?
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A
A. Of lower h.p. should be selected
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B
B. Of higher h.p. should be selected
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C
C. Can be used for 50°c ambient temperature also
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D
D. Is to be derated by a factor recommended by manufacturer and select the next higher h.p. motor
Correct Answer:
D. D. Is to be derated by a factor recommended by manufacturer and select the next higher h.p. motor
