SG、SBK系列三相干式变压器，为户内空气自冷式，适用于交流50Hz，电压1000V及1000V以下的电路中，是一般电器或照明灯常用的三相电源变压器，也可作为小型动力电源。SG-300VA380/220SG-500VA380/220SG-1kVA380/220SG-1.5kVA380/220SG-750VA380/220SG-2kVA380/220SG-2.5kVA380/220SG-3kVA380/220SG-4kVA380/220SG-5kVA380/220SG-6kVA380/220SG-7kVA380/220SG-8kVA380/220SG-10kVA380/220SG-10kVA380/220SG-15kVA380/220SG-20kVA380/220SG-25kVA380/220SG-30kVA380/220SG-40kVA380/220SG-50kVA380/220SG-60kVA380/220SG-80kVA380/220SG-100kVA380/220SG-150kVA380/220SG-200kVA380/220SG-300kVA380/220SG-500kVA380/220SG-300VA380/220带铁壳SG-500VA380/220带铁壳SG-750VA380/220带铁壳SG-1kVA380/220带铁壳SG-1.5kVA380/220带铁壳SG-2kVA380/220带铁壳SG-2.5kVA380/220带铁壳SG-3kVA380/220带铁壳SG-4kVA380/220带铁壳SG-5kVA380/220带铁壳SG-6kVA380/220带铁壳SG-7kVA380/220带铁壳SG-8kVA380/220带铁壳SG-10kVA380/220带铁壳SG-15kVA380/220带铁壳SG-20kVA380/220带铁壳SG-25kVA380/220带铁壳SG-30kVA380/220带铁壳SG-40kVA380/220带铁壳SG-50kVA380/220带铁壳SG-60kVA380/220带铁壳SG-80kVA380/220带铁壳SG-100kVA380/220带铁壳SG-200kVA380/220带铁壳SG-300kVA380/220带铁壳SG-150kVA380/220带铁壳SG-400kVA380/220带铁壳SG-500kVA380/220带铁壳)