... 3)Speed: 1500rpm--1800rpm 4)Frequency: 50 & 60Hz mobile power station:specification:1) Engine: Volvo,Cummins,Deutz, Daewoo, listerpeter, Perkins,Mtu ... Protection, AVR regulation, Voltage deviation: ±0.5%, THF<5%,low radio interference.3) Output range: 8kW to 200kW4) Frequency: 50 & 60Hz5 ...