630KVA Copper Winding Oil Immersed Distribution Transformer

Oil-immersed transformer Yawei Transformer ensures that every transformer delivered undergoes comprehensive acceptance testing, maintaining a zero-failure rate record for over a decade. Oil-immersed power transformers are designed in strict compliance with international mainstream standards such as IEC and ANSI.   Product Specifications   Applicable Standard IEEE, ANSI, DOE Phase Three Rated Capacity ( kVA) 30-10000kva Primary Voltage (kV) 6，6.3，10，11，33，66 or others Secondary Voltage (V) 400 or others Frequency 50Hz/60Hz Winding Material Copper/Aluminum Cooling ONAN/ KNAN/ ONAF/ KNAF Tap Changer ±2*2.5% HV side or other Dielectric Oil Mineral Oil/ FR3 Accessories Liquid level gauge Liquid temperature gauge Pressure-cacuum gauge Pressure relief device De-energized tap-changer Transformer cooling fans High voltage bushings Low voltage bushings   Routine tests of transformer include： 1.Winding resistance test of transformer   2.Transformer ratio t…