Calculate the heating time constant of the machine if the thermal capacity (c) of the machine is 24 watts/℃ and heat dissipation constant value (D) is 3 watts/℃.(a) 8 sec(b) 7 sec(c) 6 sec(d) 9 secThis question was posed to me by my school principal while I was bunking the class.I would like to ask this question from Motors topic in section Rating and Heating of Motors of Electric Drives

Calculate the heating time constant of the machine if the thermal capa

1.	Calculate the heating time constant of the machine if the thermal capacity (c) of the machine is 24 watts/℃ and heat dissipation constant value (D) is 3 watts/℃.(a) 8 sec(b) 7 sec(c) 6 sec(d) 9 secThis question was posed to me by my school principal while I was bunking the class.I would like to ask this question from Motors topic in section Rating and Heating of Motors of Electric Drives
Answer» CORRECT choice is (a) 8 sec Easiest EXPLANATION: The heating TIME constant of the machine is the ratio of the thermal CAPACITY of the machine and HEAT dissipation constant value. Τ = c÷D=24÷3 = 8 sec.

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