Question

What is the specific heat dissipated by the plain walled tanks of the transformer by radiation and convection?

(a) 6.5, 6 W per m^2 – °C

(b) 6, 6.5 W per m^2 – °C

(c) 6.5, 6.5 W per m^2 – °C

(d) 6, 6 W per m^2 – °C

This question was posed to me by my school teacher while I was bunking the class.

This key question is from Temperature Rise in Transformers topic in portion Design of Transformers of Design of Electrical Machines

Answer 1

Correct option is (b) 6, 6.5 W per m^2 – °C

The explanation is: The heat dissipated by the plain walled tanks of the transformer by radiation is 6 W per m^2 – °C. The heat dissipated by the plain walled tanks of the transformer by convection is 6.5 W per m^2 – °C.