A $50$ kVA, $2500/250$ volts single phase transformer has a primary resistance and

primary reactance of $1\mathrm{.}25$ and $5\mathrm{.}75$ ohms respectively. Furthermore, the secondary

resistance and reactance are $0\mathrm{.}003$ and $0\mathrm{.}015$ ohms respectively. Determine

a$)$ The equivalent resistance referred to the primary side

b$)$ The equivalent resistance referred to the secondary side

c$)$ The equivalent reactance referred to the primary side

d$)$ The equivalent reactance referred to the secondary side

e$)$ The equivalent impedance referred to the primary side

f$)$ The equivalent impedance referred to the secondary side

g$)$ The percent voltage regulation at full$-$load at:

$1)0\mathrm{.}8$ lagging power factor

$2)0\mathrm{.}8$ leading power factor

$3)$ Unity power factor