What is the weight of a 630kVA power transformer, copper wire and silicon steel sheet?
According to the formula resistance = resistivity, multiplied by the length / cross section area, as long as the data from the relevant data on the copper wire resistivity, you can calculate the length of the! When the resistivity of copper is 20 and 100 degrees Celsius, the resistivity is 0.0175 and 0.0228, respectively.
The quality of it depends on mass = density times volume (volume = cross-sectional area by length) and density can also be found from relevant data (density of copper 8.9 g/cm3).
