Vigortronix isolation transformers vigortronix vtx 182 1000 the vigortronix isolation transformer 1000va is of high quality standard and designed to transfer electrical power from a source of alternating current ac power to equipment or a device while isolating the powered device from the power source usually for safetythe isolation transformer can be used as a step up or step down transformer and is ideal to use with the following applications freezers fridges and general mains opera