voltage transformer 3 phase transformer transformer manufacturer VOLTAGE TRANSFORMER Dyco Electronics, Inc. is proud to offer a line of high voltage transformer supplies for use with static neutralizing equipment. Within a magnetic component for electrical components such as a voltage transformer there is a capacitive effect that occurs between turns, between layers, between windings (if there is more than one), between winding and core and between winding and encapsulant. This os what is known as distributed Capacitance (Cd).