The two main types of instrument transformers in a power system.
I. Voltage Transformer (VT)Voltage Transformer (Potential Transformer, abbreviated as PT; Voltage Transformer, abbreviated as VT) is an electrical device used to transform voltage levels in power circuits.1. Operating PrincipleThe voltage transformer operates on the principle of electromagnetic induction and has a structure similar to that of a conventional transformer, consisting primarily of a primary winding, a secondary winding, and a core. The primary winding is connected in parallel to the