... , 2 .small volume and light weight facilitate installation. 1, Rated HV: 10(10.5, 11, 6, 6.3) kV, 20kV, 35kV2 ... , IEC726, DIN425235, Insulation Level: LI75CA35/LI0AC36, Connection: Yyn0 or Dyn117, Transformer shell is optional, its production class is Ip20 or IP238 ...