Historical
IEEE C57.13.5-2009
IEEE standard for Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above
Single-phase instrument transformers of a nominal system voltage of 115 kV and above with capacitive insulation system for line-to-ground connection and for both indoor and outdoor application is discussed in this standard.
Content Provider
Institute of Electrical and Electronics Engineers [ieee]