Current Transformer Sizing and Saturation

ETAP Current Transformer (CT) Sizing and Saturation tool evaluates the saturation level of current transformer and its potential effect on other equipment. This tool is flexible enough to allow the user to analyze either scenarios with User-Defined fault currents or actual results obtained from the ETAP digital twin calculations. CT sizing warnings are also provided to the user considering the effect of the saturation in case of a fault event.

Tool Features

Supports CT Saturation model from IEEE Power System Relaying and Control Committee
Quickly evaluate CT saturation for sizing purposes
Analysis of CTs in different types of connection (Phase/Ground)
ANSI/IEC CT designations are supported
Variable time step and plot range for the plots
Graphical representation of the results of excitation current along with ideal/actual secondary current of the CT
Short-Circuit currents input flexibility (User-Defined/Calculated)
Short-Circuit current waveform import for analysis (SC IEC 61363)
Considers remanence effect on the CT saturation
Batch calculations from spreadsheets for different set of inputs
Enhanced and useful calculation sizing warnings
Results exporting capability for further analysis

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Análisis del sistema de energía eléctrica Software de análisis y operación de sistemas de energía eléctrica

Current Transformer Sizing and Saturation