New TZH series generators have five advantages comparing with STC series generators. Compound excitation, simple circuit, high reliability, easy maintenance. Excellent dynamic characteristics, when load or unload suddenly, the circuit's light will not twinkle. Strong starting system, even if the motors of its 70% capacity volume they can be directly started and the switch will not trip. Approaching sine voltage wave and regulated power supply, output voltage can be safely used on computers. The deviation of the 3-phase line voltage will be less than 3% when the generators undertake unbalanced loading. Operating Condiyions: Under the following environment, The generator could be continuous and rated running: Above sea level: Not exceed 1000m Cooling air temperature: 258~313K(-15 oC ~ 40 oC) Relative air damping: not exceed 90%