... is the combination of the HV electrical apparatus, transformer, and low voltage transformer equipments and therefore is used in the high ... KA31.5,50200~400KVA30400KVA637Rated making currentKA31.5,50 8Power frequency withstand voltage 1minKAPhase-earth and phase-phase 32,40Oil- ... degree IP23D 12External dimensionas per the capacity of the transformer More information please view our website www.keynai. ...