... Transformers 4.IP20 IP23 5.IEC ISO 1,11kV, S11 ,3 phase oil immersion power transformer ... HV: 6KV,6.3KV, 10KV, 10.5KV,11KV,15KV,20KV,22KV,33KV 35KV,36KV3)Rated LV: ... . 2. The list shows main performance parameters of a three-phase duplex winding off-circuit-tap ... transformer. Customized transformers of different specification are available upon the demand of users. 11KV 1600KVA Oil Filled Three ...