Mode: HCTT serial Voltage: 5kV - 2000kV Conventional AC test transformers are especially designed for testing objects of medium capacitance. These systems are particularly suited for tests requiring stable voltage even if the load changes under voltage ( corona, wet & pollution tests) or when the load is inductive ( inductive voltage transformers) . The possibility of stacking several of these transformer modules allows reaching very high voltage levels by keeping reasonable floor space.