Three-phase transformer

medium-voltageIECsafety

CIC’s medium-voltage oil-immersed transformers, characterized by high efficiency and safety, are made with high-permeability silicon steel cores, and insulating oil of a high ignition point. For high efficiency and safety, CIC’s MV oil-type transformers are made with high-permeability silicon steel cores and insulating oil of a high ignition point. Insulating oil of a high ignition point remains stable at high temperatures and has excellent electrical insulating properties. In addition, such type of transformer oil has low viscosity and excellent oxidation resistance — characteristics that help to reduce the formation of sludge and to ensure free flowing circulation and heat transfer. The properties of such insulating oil make it effective in insulating and cooling the transformer. According to differences in their capacities, these transformers come in one of two cooling methods available: Oil Natural Air Natural (ONAN) method or Oil Natural Air Forced (ONAF) method. CIC’s MV oil-immersed transformers are widely used in public constructions, hospitals, schools, factories, and commercial buildings. To ensure product quality, safety, and durability, all units undergo pre-delivery testing by an electricity laboratory accredited by TAF (a member of the ILAC) according to ISO/IEC 17025.