LUSHUN GF Series Dry Air Generator is widely applies to large scale electrical equipment such as transformers and electric reactor for supplying dry air during maintenance. The provided dry air can keep insulation status in the electrical equipment against wet and protect service person inside the equipment against oxygen-lack. The GF Series Dry Air Generator can provide much more reliable, economical, safe and convenient dry air comparing with nitrogen and its working condition will not be affected by climate and especially for the situation of overnight job, transformer and electric reactor will not get wet only if work man seals all flanges and fill dry air with 0.1~0.3MPa pressure and no need to fill oil.