... GIS. The whole test set consists of variable frequency power source, excitation transformer, 4 pieces of inductors, and ... one instrument to measure high voltage, but as one capacitor to compose the test set.√ Manual or Automatic ... , oil immersed,1 piece, about 350Kg√ Variable Frequency Power Supply, 60kW/380V,1 piece, about 150Kg√ High ... 600KV. XZF1600KVA/640kV Variable frequency resonance test series