一、概括SBK系列三相变压器是我公司多年来采用优质材料和先进技术专业生产100VA到300KVA之间，SBK系列三相变压器是我公司参照国外同类产品最新研制大电流节能变压器。它们的外形尺寸和安装尺寸已经标准化，与西门子4AP通用.产品符合VDE0550、IEC204-1、IEC439、JB5555、GB5226等国际、国家标准。适用于交流50-60HZ输入、输出电压不超过500V各种三相供电场所。产品的各种输入、输出电压的高低、联接组别、调节抽头的多少位置（一般为±5%或±10%）。系空气自冷式，具有体积小、重量轻、绝缘耐热、等级高的特点，加防护外罩或外箱体可保护人身安全和防砸等特点。本公司设计此系列产品采用进口优质冷轧硅钢片，结构合理，性能好，效率高，噪声低，广泛用于节能设备和动力电源之用。UseThe SBK series three-phase transformer has been our company for many years with the high quality material and vanguard technology specialized production from 100VA to 300KVA . The SBK series three-phase transformer is our companyin accordance withthe overseas similar product to develop the big electric current energy conservation transformer most newly. Their external dimensions and installed the size already standardized, wassubstitute forSimens 4AP. The product conforms to VDE0550, IEC204-1, IEC439, JB5555, GB5226 internationally and so on, the national standards.Is suitable in 50-60HZ input, the output voltage 500V , three-phase power supply place.Either value of input voltage, the output voltage may be selected, or the joint group and positions.Is the air self-cooling type, has the volume slightly, the weight light, the insulation heat-resisting, the rank high characteristic, adds the protection shell or outside the box body may protect the personal safety and guard against pounds and so on the characteristics. This series product uses the import high quality cold rolling silicon steel plate, the structure is reasonable, the performance is good, the efficiency is high, the noise is low, widely applied to conserving energy equipment and the power source.