Design and Testing of Voltage Instrument Transformers for Railway Application

摘要

The paper deals with designation and testing of single-phase instrument transformer of voltage (VT) used in railway applications. In railway applications is VT stressed by overvoltage much more often than in another application. This is the reason, why we deal with special designation of VT. Manufactured VT was routine tested according to IEC 61869-3 in all three operation states. This article deals about type testing of VT according to additional standard IEC 62505-3-3.