Is the power to conduct the draft expressed?
no, its implied
Is that the reactive power is a combination of both reactive power and imaginary power?
No. It is apparent power (expressed in volt amperes) that is the combination (vector sum) of true power (expressed in watts) and reactive power (expressed in reactive volt amperes). 'Imaginary power' is simply another name for 'reactive power' -where 'imaginary' is simply mathematicians-speak for 'quadrature' or 'right angles'.
What is a sentence using the word expressed power?
As a contrast to "threatened" or "implied" power, the term "expressed power" can be diversely helpful in contemporary English. One example of its use is as follows: "The expressed power of the professor's prototype was a much more eloquent argument against the cutting of project-funds than any mere words could have managed. "