Induction Motor
Induction Motor ek AC motor hai jo sabse zyada use kiya jata hai industry aur household appliances me. Ye motor electromagnetic induction ke principle par kaam karti hai, isi wajah se isse Induction Motor kaha jata hai. ⚙️ Working Principle: Jab AC supply motor ke stator winding me di jati hai, to ye rotating magnetic field (RMF) create karti hai. Ye RMF rotor conductors me induced current generate karta hai (Faraday’s Law ke hisaab se). Induced current apna ek magnetic field banata hai jo stator ke field ke sath interact karta hai, aur rotor ghuma deta hai. ? Types of Induction Motors: Single-phase induction motor Ghar ke appliances (fan, washing machine, mixer) me use hota hai. Three-phase induction motor Industries, factories aur heavy machines ke liye use hota hai. ? Speed Concept: Induction motor ki speed hamesha synchronous speed se thodi kam hoti hai. Difference ko slip kaha jata hai. Synchronous Speed (Ns) = 120 ? ? Synchronous Speed (Ns)= P 120f jahan f = supply frequency (Hz), P = number of poles. ✅ Advantages: Simple design, rugged, reliable Maintenance kam Cost effective ❌ Disadvantages: Speed control limited hoti hai Starting torque kam hota hai (specially single-phase motors me)