Mining of small hydraulic generator

1.

This is wrong. There is no small hydro generator because there is no unified definition of small hydro generator. There is no consistent definition and capacity range of small hydropower in the world. Even in the same country and in different periods, the standards are not the same

Generally, according to the installed capacity, small hydropower can be divided into micro, small and small. Some countries have only one grade, while others are divided into two grades, which are quite different. According to China's current regulations, small hydropower stations with installed capacity less than 25000 kW are called small hydropower stations; Medium sized hydropower stations are not less than 25000 kW and less than 250000 kW; More than 250000 kW is a large hydropower station

extended data

for small hydropower stations, it has its own characteristics, including the following aspects:

(1) the construction scale of the power station is small, the project is simple, and it has local characteristics

(2) small hydropower equipment is relatively simple, and many of them can be ordered nearby

(3) in general, small hydropower should not be transmitted from long distance, but from local to local

(4) the capacity of small hydropower grid is small, the generating capacity is small, and the load is small and scattered

(5) small hydropower buildings and equipment are small and simple

(6) e to the small scale of small hydropower generation, there are few problems of submergence and submergence

4. Small water turbine drives generator, but also do a good job in infrastructure, machine room, voltage regulator, battery, inverter, the water energy of the stream is limited, I'm afraid it's not enough.

5. Hello, there must be a matching governor, the control is too small. There are also excitation transformers. It's very troublesome. What you need is calculated by formula. The key is to spend a lot of money.

6. Generally, the price of small water turbine generator is several thousand yuan

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9. Generators are all excited, and the difference is nothing more than the way in which the excitation is provided
for small motor generator, a capacitor can be connected in series on the rotor
large and medium-sized generator, the excitation connection form is divided into brushless excitation and brush excitation, and the excitation power supply form is divided into excitation transformer power supply and permanent magnet power supply. Permanent magnet machine is to hang a small generator at the end of the generator, and the electricity is used for excitation
the wheelbase of permanent magnet generator is longer than that of brushless excitation of excitation transformer, while that of thyristor brushless excitation is the shortest, and the shorter the wheelbase is, the better the dynamic stability is. As for the rare earth materials you mentioned, I really don't know. The permanent magnet generator is only different from the ordinary synchronous generator in the way of providing excitation power and wheelbase
generator set is generally composed of engine (providing kinetic energy), generator (generating current) and control system. There are diesel generator set, gas generator set, gasoline generator set, wind generator set, solar generator set, hydro generator set, coal-fired generator set, etc. Gasoline generator set is a kind of power generation equipment, which takes gasoline as fuel and converts other forms of energy into electrical energy.

10. Hydropower mainly uses the power generated by the drop to generate electricity. You can achieve this drop in theory, but it doesn't make any sense in practice.