Generators are usually composed of stator, rotor, end cover, electric brush, base and bearing parts.
I. Characteristics of generators
1, the engine working speed can be changed in a large range, so it can be better match with the generator, to achieve the goal of saving fuel;
2, the engine can work in the High speed zone, Generators thus outputting the same power, the engine weight, volume is much smaller. In terms of power, higher than power;
3, the alternator work speed is high, also reduces the weight and the volume;
4, comprehensive 2, 3 points, but also save a lot of metal materials;
5, the output power of high quality-pure sine wave output, Generators harmonic content is very small;
II. Classification of generators
1. According to the conversion of power mode classification
According to the converted power mode can be divided into AC Generator and DC generator two categories.
The alternator is divided into two kinds of synchronous generators and asynchronous generators. The synchronous generator is divided into two kinds: the Hidden pole Synchronous generator and the salient pole type synchronous generator. Synchronous generators are the most commonly used in modern power stations, and asynchronous generators are rarely used.
The alternator unit can be divided into single-phase generator and three-phase generator two kinds. The output voltage of three-phase generator is 380V, and the output voltage of single-phase generator is 220V.
2. By excitation Method classification
The excitation mode can be divided into two types: brush excitation generator and brushless excitation generator.
The excitation mode of the brushless excitation generator is his excitation type, and the excitation mode of brushless excitation generator is self excited. The rectifier device of the excitation type generator is on the generator stator, and the rectifier of the excitation generator is on the rotor of the generator set.
3. By driving power classification
There are many types of generator driving power, Generators and the common engines are:
(1) Wind turbines
Wind turbines are powered by wind-driven generators that generate electric currents that do not consume extra energy and are a non-polluting generator;
(2) hydro-electric Machine
Hydroelectric machine is the use of water flow, generate power, drive generators, but also the use of green natural resources for power generation equipment, also known as hydro-generators
(3) Fuel generator