For a transformer to function in an ideal manner, it is very important to maintain the voltage amount within the system. With a drop in voltage rate, the chances are high that it will directly affect the rate of work in transformer.
It is very important to know that this voltage drop is associated with performance deterioration of a system. If there is a high level of voltage drop in a transformer, it could also lead to lower voltage on the low side of load voltage of a transformer.
If the opposite happens, there is higher side of load voltage of a transformer.