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Hydro turbine Tech
Hydraulic generator driven by the turbine. Its rotor short, short time needed for starting, interconnection of the unit, flexible scheduling, in addition to the general power generation, especially fitting as peaking units and accident spare units. Maximum capacity has reached 800000 kilowatts of hydropower generating unit. Diesel generator driven by internal combustion engine. It start quickly, easy to operate, but the cost is high, mainly used as emergency standby power, or in large power grid and mobile power station using not reached. Capacity in several kilowatts to thousands of kilowatts. Diesel engine output shaft torque of a periodic pulse, to prevent resonance and broken shaft accidents. Hydro-generator speed will determine the frequency of the alternating current (ac), to ensure the stability of the frequency, must be stable and rotor speed. To stabilize the speed, can adopt the way of closed loop control of prime mover (turbine) speed control, the signal of the frequency of the alternating current sampling, and feedback to control the turbine guide vane opening and closing Angle control
Hydro-generator press can be divided into two categories, vertical and horizontal axis position. Large and medium-sized units generally USES vertical arrangement, horizontal layout are normally used for small hydro-generator unit models and turbine unit. According to the guide bearing support way is divided into vertical hydro-generator hanging and umbrella type two kinds. Umbrella hydrogenerator according to the different positions of the guide bearing is located in the upper and lower frame is divided into ordinary umbrella, umbrella and umbrella. The stability of hanging hydro-generator is better than umbrella, small thrust bearing, low loss, easy installation and maintenance, but steel consumption. Umbrella unit total height is low, can reduce hydropower plant height. Horizontal hydrogenerator commonly used in speed greater than 375 r/min, and a few small capacity power station.
Beijing Daelim Green EP Tech Co., Ltd. is mainly engaged in the import & export of electric products and equipment. Our business team has more than 15 years' foreign business experience, and also has a unique understanding of electrical products and overseas markets. We have established and extended business relationships with customers and partners in Southeast Asia, the Middle East, Europe, Africa, North America and South America.
The main products and equipment we are dealing with: power transformer, current transformer, potential transformer, vacuum & SF6 circuit breaker, load break switch, disconnector, switchgear panel, power plant, transmission line equipment.
We provide competitive prices, high quality products, timely shipment and efficient services to develop our cooperation with all of our customers. We are trading in accordance with international traditions and practices. We would like to extend business with our customers and partners on the basis of cooperation and mutual benefit..