a leading manufacturer of custom engineered power electric transformers for energy industrial mining oil & gas utility commercial institutional specialtyand export markets in power ranges from 300 kva to 100 mva . virginia transformer produces one of the broadest ranges of small and medium power transformers available from a single source . your one source for power ... on line witness testing did you know with vtc you can witness on line live testing of your ordered transformer from the comfort of your office and even control the camera remotely and interact with the test engineer at our facility check out at the sample recordings at the urls below typical wind farm project remote on line witness testing on vtc specialty pad mount gsu typical solar farm project remote on line witness testing on vtc specialty pad mount gsu a unique offering from vtc we innovate inside and outside message from president technology experience service products feedback brochures terms and conditions