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Comparison Between Permanent Magnet Generators And Electrically Excited Generators 1 Permanent magnet generators can run at variable speeds. Electrically excited generators can only run at a constant speed. When the speed varies greatly, the AVR of electrically excited generators will desperately increase the excitation current, which will burn up the excitation coil to a certain …

Comparison between permanent magnet generators and electrically excited generators Read More »

1. Micro Hydro Power System (MHPS)Flowing and falling water has potential energy that can be converted into electricity through hydroelectric power systems. Micro hydro power system is composed of two major parts: micro hydro power generator set, micro hydro power hydraulic building and engine room.Micro-hydro power system is generally defined as a system with power …

Micro Hydro Power Terminology Read More »

Basic parameters of micro hydro generator sets.Output power: 0.1 kW to 500 kW.Rated voltage: 230 volts single-phase; 400 volts three-phase.Rated frequency: 50 Hz ( or 60 Hz).Rated synchronous speed of the generator: 500, 750, 1000, 1500 rpm.Steady-state voltage adjustment rate: i.e., the allowable voltage fluctuation range Rated power of generator (kW) ＜2 2～5 ＞5 Steady-state …

Technical conditions for micro-hydropower Read More »

Although the hydraulic construction of micro-hydro power generation is small, its quality determines whether the micro-hydro generator set can be in the best working condition. Diversion CanalThe diversion canal is responsible for the dual task of diverting water and forming the head for power generation. The main points of the construction of the diversion channel …

Introduction to civil work construction for micro-hydropower systems Read More »

How much does a micro-hydro system cost to invest? There is no standard answer to this question, that is because the cost depends on the local technology, the economy and the amount of power you expect to receive. In general, with current technical capabilities, it costs $1500-$2500 per 1KW of electricity, so the total investment …

Micro-hydropower system investment budget Read More »

Flowing and falling water has potential energy that can be converted into electricity through hydroelectric systems. The fall of rivers generates huge electricity to supply to thousands of households through large hydropower hubs; similarly, small rivers, streams, and the flowing and falling water formed by gushing springs can also build micro-hydropower systems (referred to as …

Why build micro-hydropower Read More »

Micro hydro generator  are generally classified according to the applicable head of the turbine: low head units (applicable head 1.2 to 20 meters), medium head units (applicable head 15 to 40 meters), and high head units (applicable head 25 meters or more). Low-head units below 100KWLow-head units below 100KW mostly adopt axial-flow turbines. Micro axial …

Classification of micro-hydro generator Read More »

According to the specific conditions of micro-hydropower resources and power supply needs, there are four technical solutions for micro-hydropower systems: 1) AC direct supply system, 2) battery type system, 3) water storage power system, and 4) hybrid system. 1) AC Direct Supply System The AC direct supply system is similar to the utility power used …

Solutions for micro hydropower Read More »

1. Input estimates for each technology modelMicro hydropower construction investment varies greatly depending on the natural conditions. In general, the independent operation of the micro-hydro power supply system per kilowatt of construction investment in l million yuan, the use of funds to allocate the proportion of the relationship is: equipment (including units and metal components) …

Micro hydropower Input-output economic benefit analysis Read More »

1. Single-family micro hydropower unit(1) Technical route(2)Main technical links and points. (1) Characteristics of each component and equipment. The core part is an integrated micro-hydro generator set, i.e., the turbine, generator, controller, and dummy load are assembled together to improve the convenience of installation and use for users. ②Key performance parameters of the technology. Number …

Technical highlights of Micro hydropower Read More »