We are the only independent manufacturer of reactive type on-load tap changers with vacuum interrupters in the world. Today we proudly offer the most popular LTC ever designed in North American history - the RMV. We also support in-tank designs from our parent company (Type V, H, D, F, K, T, M, MS, and R among others) and Trafo-Union, as well as older Westinghouse designs (UTS, UTT, and UVT).