... temperature operation 3.Low operation cost 4.Low fuel consumptio Natural gas generator Electric start, water-cooled, four-stoke, direct injection ... (Sudden Increase)≤1.0SFrequency Regulation, Stead State≤0.5%Frequency Waving≤0.5%Frequency Recovery Time ( Sudden Reduce)≤1 ... -oil temperature, lube-oil pressure, exhaust temperature10) Gas consumption: less than 0.33cbm/kWh 11) Supply connection: 3 phase, ...