3-Phase Induction Motor Function | Parts | Failures | Root Cause
3-Phase Induction Motor Function | Parts | Failures | Root Cause A 3-Phase Induction Motor is the workhorse of industrial applications due to its robustness, low maintenance, and reliability. Function: It converts electrical energy (3-phase AC supply) into mechanical energy through electromagnetic induction. Widely used in compressors, pumps, conveyors, and HVAC systems. Main Parts: 1. Stator Stationary part, holds 3-phase winding, creates rotating magnetic field. 2. Rotor Rotating part (Squirrel cage / Wound type) that turns due to magnetic field interaction. 3. End Shields / End Covers Support bearings and cover motor ends. 4. Bearings Allow smooth, low-friction rotation of the rotor. 5. Cooling Fan Maintains motor temperature within limit. 6. Frame / Housing Protects internal parts, ensures mechanical strength. 7. Terminal Box Electrical connection point for power supply. 8. Shaft - Transfers mechanical output to load. 9. Cooling Fins Enhance heat dissipation from the frame. Co...