Altea CVS-24-G-ST is a combined current and voltage low-power transformer integrated into a separable ìTî connector. It is suitable for installation in switchgears with maximum voltage for equipment up to 24 kV and it fits on extruded-insulation cables with conductor up to 300 mm2.
CVS-24-G-ST voltage instrument transformer features
Rated insulation level
Rated primary voltage, Upn
20/13 kV, 15/13 kV, 10/13 kV
Maximum voltage, Um
Rated voltage factor, IC,,
1,9 for 8h
Nominal transformation ratio. K,,
0,5 for measurement 3P for protection.
The maximum deviation with respect to the prototype is 0.1% for ratio error and 0,1° for phase error.
CVS-24-G-ST current instrument transformer features
Rated primary current, IF
Rated primary time constant for transient performance, Tpr
Rated short time withstand thermal current, Ith
16 kA / 3s
Rated Dynamic current, lay.
Nominal transformation ratio, K.
1000 A / 31 mV
Accuracy class (Ratio error, Phase displacement. Deviation respect to the prototype accuracy)