Hydropower Knowledge

  • Post time: 02-21-2022

    The rotational speed of hydraulic turbines is relatively low, especially for vertical hydraulic turbines. In order to generate 50Hz alternating current, the hydraulic turbine generator adopts a structure of multiple pairs of magnetic poles. For a hydraulic turbine generator with 120 revolutions p...Read more »

  • Post time: 02-17-2022

    Hydraulic turbine model test bench plays an important role in the development of hydropower technology. It is an important equipment to improve the quality of hydropower products and optimize the performance of units. The production of any runner must first develop a model runner and test the mod...Read more »

  • Post time: 02-11-2022

    1 Introduction Turbine governor is one of the two major regulating equipments for hydroelectric units. It not only plays the role of speed regulation, but also undertakes various working conditions conversion and frequency, power, phase angle and other control of hydroelectric generating units a...Read more »

  • Post time: 02-08-2022

    1、 Division of capacity and grade of hydro generator At present, there is no unified standard for the classification of capacity and speed of hydro generator in the world. According to the situation in China, its capacity and speed can be roughly divided according to the following table: Class...Read more »

  • Post time: 01-29-2022

    There is no direct relationship between the AC frequency and the engine speed of the hydropower station, but there is an indirect relationship. No matter what type of power generation equipment it is, after generating electricity, it needs to transmit electricity to the power grid, that is, the g...Read more »

  • Post time: 01-24-2022

    During the maintenance of water turbine generator unit, one maintenance item of water turbine is maintenance seal. The seal for maintenance of hydraulic turbine refers to a bearing seal required during shutdown or maintenance of hydraulic turbine working seal and hydraulic guide bearing, which pr...Read more »

  • Post time: 01-20-2022

    Hydro generator is the core part of hydropower station. Water turbine generator unit is the key main equipment of hydropower plant. Its safe operation is the fundamental guarantee for hydropower plant to ensure safe, high-quality and economic power generation and supply, which is directly related...Read more »

  • Post time: 01-18-2022

    In addition to the working parameters, structure and types of hydraulic turbine introduced in previous articles, we will introduce the performance indexes and characteristics of hydraulic turbine in this article. When selecting a hydraulic turbine, it is important to understand the performance of...Read more »

  • Post time: 01-17-2022

    Treatment and prevention measures of concrete cracks in flood discharge tunnel of hydropower station 1.1 Overview of the flood discharge tunnel project of the Shuanghekou Hydropower Station in the Mengjiang River Basin The flood discharge tunnel of Shuanghekou Hydropower Station in the Mengjiang...Read more »

  • Post time: 01-14-2022

    It has been 111 years since China started the construction of shilongba hydropower station, the first hydropower station in 1910. In these more than 100 years, China’s water and electricity industry has made remarkable achievements from shilongba hydropower station’s installed capacit...Read more »

  • Post time: 01-10-2022

    Generator and motor are known as two different kinds of mechanical equipment. One is to convert other energy into electrical energy for power generation, while the motor converts electrical energy into mechanical energy to drag other objects. However, the two can not be installed and replaced wit...Read more »

  • Post time: 01-06-2022

    The output of the hydro-generator drops Reason In the case of constant water head, when the guide vane opening has reached the no-load opening, but the turbine has not reached the rated speed, or when the same output, the guide vane opening is larger than the original, it is considered that the o...Read more »

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