The Sync Speed

In the case of winding rotor induction motors it is permissible to achieve any speed, from zero to close to the synchronizing speed, depending on the variation of a simple resistance attached to the rotor winding, and that it will not generate a heating of it, considering that resistance losses occur independently of the motor. In DC motors, the speed can be adjusted as required by inserting a rheostat device into the field circuit so that adjustments can be made to the flow.

Another method of regulating the speed of the alternating current motors, which ensures that the speed of the shaft is from zero to twice the synchronous speed, is made by the rotor system with a switch, by means of the brush off.   Browning 2B5V80

Another possibility of change of speed in the induction motors can be achieved through the frequency inverter, which will ensure the control of the AC motor can modify the frequency, as well as also realize the change of the output voltage to be respected the characteristic of the motor voltage and frequency.

 

 

 

 

Esta entrada foi publicada em março 15, 2018, em Uncategorized.

Magnetic Flow

The moment two magnets approach the magnetic flux around them may lead to an interaction between them and if the magnets are approached with the opposing poles, they may attract and if they have the identical poles, repel.

Each magnet has two poles, without exception, one north pole and one south pole. The invisible lines of the magnetic flux exit the north pole and go towards the south pole. Even if the flow lines are invisible, the effects of the magnetic field produced by them may become visible.

If a sheet of paper is placed on a natural magnet or even on an electromagnet, and an iron filament is poured on it, the iron filings will be arranged along the invisible lines of the stream.  Motor Accessories and parts

The dashed lines will show the path of the magnetic flux lines and the field lines exist inside and outside the magnet, thus forming closed loops. The magnetic flux lines leave the north pole and enter the south pole, returning to the north pole by means of the magnet.

 

Esta entrada foi publicada em março 12, 2018, em Uncategorized.