110kV Single-phase SF6 Capacitor Voltage Transfor

Technical Parameters for TYDL 110/√3 - 0.01H SF6 Capacitor Voltage Transformers 1 Rated voltage 110/√3kV 2 Highest voltage for equipment 126kV 3 Rated frequency 50(60)Hz 4 Rated secondary voltage a)Measuring secondary winding 0.1/√3kV b) Protective secondary winding 0.1/√3kV c) Residual voltage winding 0.1kV 5 Rated operating pressure of gas SF6 is 0.40MPa 6 Minimum operating pressure of the gas SF6 is 0.35MPa 7Rated output and relative accuracy class (cosΦ=0.8 lag) see Table 1 Table 1 Rated Output and Relative Accuracy Class of Instrument Transformer WindingMeasuring WindingProtective WindingResidual Voltage WindingTerminals Marking1a-1n2a-2n3a-3nda-dnAccuracy Class0.20.50.53P0.53P3PRated Output (VA)100-150---300-150-250--30075-100-75300 Notes: A.The Windings quantity, rated output and accuracy listed above can be designed according to the requirements of the clients; B. Thermal limit load of each protective winding is 2000 VA. 8The system earthing mode is effectively earthed neutral system 9Arcing distance ≥1160mm 10 Creepage distance of outer insulation see Table 2 Table 2 Creepage Distance of Outer Insulation Pollution Protection ClassClass IIClass IIIClass IVCreepage Distance (mm)≥2520≥3150≥3906 11 Rated capacitance (CN) of the capacitor divider is 0.01μF; Rated capacitance (C1N) of the high voltage capacitor of the capacitor divider is 0.0189529μF; Rated capacitance (C2N) of the intermediate voltage capacitor of the capacitor divider is 0.0211695μF. 12The capacitance tolerance of the capacitor divider CN shall not exceed -5% +10% of rated capacitance; the capacitance tolerance of the high voltage capacitor C1 shall not exceed -5% +10% of rated capacitance; the capacitance tolerance of the intermediate voltage capacitor C2 shall not exceed ±5% of rated capacitance. 13 The voltage ratio of a capacitor divider shall not exceed ±5% of its rated value. Notes:Detailed technical data and outline drawings can be providedupon request.