3750 KVA Three Phase Substation Transformer with OLTC

Product Specifications MVA Rating Up to 66 MVA Tap-Changer Off-load or On-load tap changer Rated Voltage Up to 46 kV Vector Groups Dyn11 or others Type of Cooling ONAN, ONAF Dielectric Liquid Mineral oil, Silicon oil, Biodegradable Oil Manufacturing Standards IEEE/ANSI, CSA Rated Frequency 60 Hz  50Hz   Notes on Key Terms: ONAN: Abbreviation for "Oil Natural Air Natural", referring to the oil-immersed natural cooling method (heat is dissipated through natural convection of oil and air). ONAF: Abbreviation for "Oil Natural Air Forced", meaning the oil-immersed forced air cooling method (heat is dissipated by natural convection of oil and forced circulation of air via fans). Vector Groups: Represent the connection mode and phase relationship of transformer windings, which are critical parameters for ensuring the transformer matches the power grid's phase sequence and voltage level. Yawei's Most Competitive Products: Pad Mounted Transformer, Power Transformer, Di…