High Quality Transformer 500 kva 1)Power Distribution Transformer 2)Certificate:CCC,CTQC,ISO9001,ISO14001,OHSAS18001 High Quality Transformer 500 kvaS9-M- ... more than 1000 mEnvironmental highest temperature + 40°C, minimum-45°C. (when you order details)Mounting ambicnt: no corrosive ... transformer3. GB/T6451-2008 oil-immersed three-phases transformer power technical parameters and requirements4.IEC