SG type isolation transformer,without case General (DG and SG series single- ... : <1000m 3.Relative humidity: <90% 4.Environment exists without gas, steam, chemical deposition, dust or dirt that will ... and current. 6.Protection: over-current protection 7.Can operate itself without anybody attending for a long term 8.Insulation ... cm)Transformer weight(kg)SG-0.517×9×1511×7.832×15×2210SG-125×10×2014×940×20× ...