If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor Options: A . &nbspOf lower H.P. should be selected B . &nbspCan be used for 50°C ambient temperature also C . &nbspOf higher H.P. should be selected D . &nbspIs to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor

If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C a

Question

If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor

Options:

A . Of lower H.P. should be selected

B . Can be used for 50°C ambient temperature also

C . Of higher H.P. should be selected

D . Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor

Answer: Option D

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