Balanceo Dinamico de Rotor motor electrico hp con ventiladores. To carry out the rolling, the rotor shaft is placed on rails as shown in Figure 1a. The disc is rotated and left to stop on its own. It is marked on the disc with chalk at . Introducción 2. ¿Qué es el desbalanceo? 3. Cantidad de desbalanceo 4. Tipos de balanceo 5. Clasificación de los desbalanceos 6. Equilibrado de rotores.
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The signal readings, which are scalar quantities that reflect residual complex values offset with magnitude and phase when there is no imbalance, produce a nonlinear behavior of the data with respect to the unbalanced forces.
The measurement consists of a virtual instrument, a set of solid-state magnetic sensors and its signal conditioning. It then calculates the harmonics R 01R 02R 03 related to the resultant unbalance. Composition of harmonic vectors. This balancing technique faces two problems; one is data variations of samples which are solved by taking three to five minute samplings, and calculating the r. Having determined the harmonic phases, it is possible to calculate the influence coefficients as well as the balance masses for each combination of trial weights.
Cantidad de desbalanceo 4. Camargo 9 presents results of single-plane rotor balancing using electric harmonics that relate to mechanical unbalance. It initiates an iteration cycle for the unbalance angle, calculating then the unbalance mass according to equation Based on previous works in the literature, where a relationship between the mechanical unbalance and the electric-current harmonics is reported, this article develops a more efficient method of balancing that takes into account the r.
Of particular interest is the harmonic signal related to mechanical unbalance.
Single plane balancing; induction motors; current harmonics; Hall effect. If you are a seller for this product, would you like to suggest updates through seller support? A residual current is considered as the remaining harmonics after subtracting the fundamental current circulating in a motor wiring.
Dorrel et al 1 studied how the magnitude of electric harmonics relates to the mechanical harmonics in motors focusing on eccentricity. Get to Know Us. Once the harmonics are known, it then calculates the influence coefficients and the balance masses. Amazon Second Chance Pass it on, trade it in, give it a second life.
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Conclusions Based on previous works in the literature, where a relationship between the mechanical unbalance balnceo the electric-current harmonics is reported, this article develops a more efficient method of balancing that takes into account the r.
Tipos de balanceo 5.
Balanceo en dos planos 6. It recycles iteration to step 1. Table 4 shows estimated balance masses for each test case to compare with the expected value. Next, a set of relations involving perturbations is developed: Vol 2, Issue 1, Try the Kindle edition and experience these great reading features: Would you like to tell us about a lower price?
This is a compatibility condition for harmonics related with L 1L 2. Substituting in the trigonometric identity that the sum of the squares is equal to one, one gets:.
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Get fast, free shipping with Amazon Prime. Withoutabox Submit to Film Festivals. In this case, the 4-pole induction motor runs at 60Hz.
When direct measurements are included, vectors may look like shown in Figure 4 and their equations are:. There’s a problem loading this menu right now. Hall-effect probes for rotoees current, signal conditioning, data acquisition system, and virtual instrument developer in G language.
Neelam 7 presents an analysis of the electric current as the most popular for failure diagnosis, not only electrical but also mechanical as well, showing effectiveness to determine abnormal operation of induction motors, including situations involving gear trains. These currents are produced by a deformation of the magnetic field in the motor air-gap, as a result of mechanical unbalance.
Alfonso,Lorandi M. Several tests were conducted using an induction motor described in Table 1. Write a customer review. The signal errors that are present in the readings, more pronounced in these Hall-type sensors, are decreased by means of a system of equations of perturbations and compatibility relations that are applied to these data.
These harmonics depend on the rotor slip, input frequency, and they occur at the frequencies given by the following expressions:.