Views: 0 Author: Site Editor Publish Time: 2011-03-24 Origin: Site
electricGenerator setThe rotation of the synchronous motor is driven by the motor, and the output voltage of the generator is adjusted by adjusting the exciting current of the generator. The advantage of this method is that it can press evenly and precisely. It is not affected by the same voltage fluctuation. The well can supply a sinusoidal voltage transition (Figure 1).
Using electricGenerator setThe following points should be noted:
①In order to supply a sinusoidal waveform voltage transition. The generator must be a specially designed sinusoidal generator.
②In order to deal with the residual voltage caused by the residual magnetism of the magnet. To start the spectral voltage from zero, try to use a sliding double potentiometer connected to a constant DC voltage to adjust the magnetic break.
③Generally, only a single-phase generator is required. However, the series test transformer can sometimes be operated in three phases. So a three-phase generator is needed at this time. Because in most cases it is applied. Still running in single phase. Therefore, it is necessary to fully test the power requirements of the three-phase operation of the E-converter. It must also meet the power requirements during single-phase operation. Usually, a three-phase generator is used for two-phase operation. The output capacity of the two-phase operation is the same. It is l/√3 of the fixed capacity of the generator, which is imaginary equal to the capacity of the test transformer.
④The motors used to drive the generator can be divided into three types: asynchronous motors, synchronous motors and DC motors. Such as using asynchronous motor. It is impossible to supply the output voltage of the electric string, but its efficiency can be close to that of the electric string with the same frequency, such as using a synchronous motor. The frequency is limited by the electric power; if a straight-roller motor is used, the frequency can be changed arbitrarily. Get the various frequencies you need. The formula of the electric motor can be calculated as follows:
