An asynchronous motor is the most common type of electric motor in industry. Understanding its structure helps to understand the causes of breakdowns and the logic of repairs. Let's analyze the design by components.
Main components
- Stator - a stationary part with a winding that creates a rotating magnetic field.
- Rotor - a rotating part; for most machines, this is a “squirrel cage” of aluminum or copper rods.
- Bearings - shaft supports that provide rotation.
- Case (frame) - holds the stator and protects the insides.
- Bearing shields - covers with bearing seats.
- Fan and casing - cooling system.
- Terminal box - for connecting power.
How it works
The stator winding creates a rotating magnetic field. It induces currents in the rotor, and the resulting forces cause the rotor to rotate. The rotor always rotates a little slower than the field - hence the name “asynchronous”.
Which nodes break down more often
| Node | Typical problem |
|---|---|
| Stator winding | Breakdown, interturn short circuit - rewind |
| Bearings | Wear - replacement |
| Rotor | Breakage rods |
| Fan | Failure of the impeller |
Understanding the design explains why these particular components are checked during diagnostics. Most faults are repairable.
Do you need repair of an asynchronous motor in Tashkent? Elektromotors engineers know the design down to the screw - contact us.