... four protect system 3) Place of origin:Weifang, Shandong,China 20KW diesel generator1,Model: GF-20 Power Output (Prime): 25KVA/20KWPower ... Factor: COSΦ=0.8(Lagging)Max. Current Output: 36AVoltage Output: 230/400V12V Electric ... Voltage return time: less than 4sc) Voltage modulation: less than 0.3%10) Open ,soundproof or waterproof or automation genset is ...