110kV单一阶段SF6归纳的电压变形

Technical Parameters for JDQXF-110W (1 3) Voltage Transformers 1 Rated voltage 110/√3 kV 2 Highest voltage for equipment 126 kV 3 Rated frequency 50 (60) Hz 4 Rated secondary voltage a)Measuring secondary winding 0.1/√3 kV b)Protective secondary winding 0.1/√3 kV c)Residual voltage winding 0.1 kV 5 Rated operating pressure of gas SF6 0.40 MPa 6 Minimum operating pressure of the gas SF6 0.35 MPa 7 Rated output and relative accuracy class (cosΦ=0.8 lag) Winding Measuring WindingProtective WindingResidual Voltage WindingTerminals Marking1a-1n2a-2n3a-3nda-dnAccuracy Class0.20.50.50.53P3PRated Output (VA)1001503001502503007510075300Note: The thermal limit load for protective winding is 2000 (VA). 8 The system earthing mode is effectively earthed neutral system 9 Arcing distance ≥1010 (mm) 10 Creepage distance of outer insulation please see Table 1 Table 1 Pollution Protection ClassClass II (W1)Class III(W2)Class IV (W3)Creepage Disrance (mm)≥2520≥3150≥3906