DDG series Single mutrally Low electric voltage Big Electric current Transformer,usedfor the electric current primarily to feels 1 surroundings air temperatute-50 to + an average value for,24hours not exceeds+35.2 Install the location elevation not over 2000ms;3 Opposite degree of humidity in atmosphere at surroundings air temperature is+40 hournot over50%,under the lower temperature can have than High and opposite degree of humidity,the biggest degree of humidity ih the most wet lunar average is 90%,at the same time shouldaverage and lowest temperature in lumar month is+25,combine in consideration ofbecause of temperature the variety takes place in the superficial of water in product.

transformer