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Several Connection Ways of Ventilation Pipeline
02-04-2019
With the rapid development of technology, the application of ventilation duct is more and more extensive. Here we introduce four connection modes of ventilation duct. 1. Hose Connection: Mainly used for connecting air du...
The Method of Judging Pole Number of Three phase Asynchronous Motor
02-04-2019
A simple method for judging the pole number of three-phase asynchronous motor. When the nameplate is lost and the pole number of the original asynchronous motor is unknown, the current mu-A of the multimeter can be used ...
Detailed explanation of the mechanism of stepping motor
01-04-2019
Stepping motor is a kind of special motor used as control. Its rotation is operated step by step at a fixed angle (called "step angle"). Its characteristic is that there is no accumulated error (accuracy is 100%), so it ...
Reasons for the excessive spark of DC motor brush
29-03-2019
What causes the DC motor spark to be too large? Xiaobian summed up a few points: 1. The DC motor is not on the neutral line. 2. Improper voltage or poor contact with the commutator or electrical wear or incorrect electri...
Analysis of Problems in the Production Process of Cast Aluminum Rotor
25-03-2019
1. The main reasons for the breakage of cast aluminium rotor in the process of casting aluminium are as follows: Cast aluminium rotor stamping sheet after lamination did not carry out the light inspection of groov...
Permanent magnet motor advantages and disadvantages analysis selection guide
23-03-2019
In permanent magnet machines, if the torque ripple is not considered, the stator may use concentrated (short pitch) windings, but it is common to distribute the windings in larger permanent magnet motors. Since permanent...