What are the advantages and disadvantages of six-tube, eight-tube, nine-tube and eleven-tube alternators of automobiles?

1, six tubes are standard three-phase bridge rectifier circuits.

2. In the case of large current output of the generator, the diode can increase the current output by about 8%. Increase the output power of the generator.

3. Six high-power rectifier diodes in the nine-tube machine form a three-phase full-wave bridge rectifier circuit to supply power to the external load, and three low-power diodes and three high-power negative diodes also form a three-phase full-wave bridge rectifier circuit to supply power to the generator magnetic field, so the three low-power tubes are called excitation diodes.

4. The rectifier of eleven-tube alternator is equivalent to the rectifier of nine-tube alternator plus two neutral rectifiers. Eleven-tube alternator is widely used because it can not only improve the power of the generator, but also simplify the charging indicator circuit.

Note: First of all, the concept of generator set: generator set refers to power generation equipment that can convert mechanical energy or other renewable energy into electrical energy.

Generally speaking, our common generator sets are usually driven by the following types: steam turbine, water turbine or internal combustion engine (gasoline engine, diesel engine and other generators), wind energy, solar energy, biomass energy, ocean energy and so on.

The biggest market of diesel generators is that diesel generators have large capacity, which can run continuously in parallel for a long time or independently, and are not connected in parallel with the regional power grid, which is not affected by power grid faults and has high reliability.

Especially in some areas where the common commercial power is not reliable, using diesel generator as backup power supply can not only play the role of emergency power supply, but also use some important loads in case of power failure through reasonable optimization of low-voltage system. Therefore, it is widely used in engineering.