Solution:
(a) To increase the voltage at the generating plant, a step-up transformer is put to use.
(b) For its supply, a step-down transformer is employed to lower the voltage at the substation.
Name the device used to (a) Increase the voltage at the generating station (b) Decrease the voltage at the sub-station for its supply.
Name the device used to (a) Increase the voltage at the generating station (b) Decrease the voltage at the sub-station for its supply.