What Are the Different Types of Generator Conversion?

Generator speed is the rotation speed of the generator's main shaft, the maximum number of revolutions that can be completed in one minute. The speed of the rotation speed is one of the important parameters indicating the engine grade, and it is one of the key factors determining the internal transmission rate of the engine. The speed of the generator is usually expressed in revolutions per minute, notation r / min. The calculation formula is speed n = 60f / p, where n is the speed, f is the frequency, and p is the number of pole pairs of the motor.

Rotationl Speed is the rotation speed of the main shaft of the generator. The maximum number of revolutions that can be completed in one minute. The speed of the rotation speed is one of the important parameters indicating the engine grade, and it is one of the key factors determining the internal transmission rate of the engine. ^[1]

The speed of the generator is usually expressed in revolutions per minute, notation r / min. The speed of the generator indicates the speed on the output shaft, not the speed of the generator rotor. If there is no gearbox, of course, the speed of the rotor is the output speed of the shaft. ^[2]

1. Because Hertz is the frequency per second and the speed generally refers to the speed per minute, its calculation method is: the speed (speed per minute) is Hertz times 60 divided by the number of pole pairs. For example, 50 Hz, four-pole generator: 50 * 60/2 = 1500 (rev / min) (four poles are two pairs of magnetic poles)

2. Frequency measurement is the most basic measurement in the field of electronic measurement. Generally, there are two methods for frequency measurement:

(1) Counting method. This means that within a certain time interval T, the number of input periodic signal pulses is N, and the frequency of the signal is F = N / 1 '. The relative error of the measurement is I / N x100. This method is suitable for high-frequency measurement. The higher the frequency of the signal, the smaller the relative error.

(2) Week measurement method. This method is to indirectly measure the frequency of the pulse number N of a standard signal with a frequency Fo within one cycle of the signal under test, F = F '/ N. The longer the period of the measured signal (the lower the frequency), the greater the number of pulses N of the measured standard signal, and the smaller the relative error.

3. Speed n = 60f / p, where n is the speed, f is the frequency, and p is the number of pole pairs of the motor. ^[3]