Universal Motor Details And All The Essential Informations In Hindi

Universal Motor electric motor ka ek type hota hai jo ki dono AC or DC power pe kaam kr sakta hai. Is motor me electromagnet as a stator magnetic field create karne ke lie us hota hai. Ye commutated type series-wound motor hai, stator field ki coils commutator ke through rotor windings se series me connected hota hai. Isko AC series motor bhi kaha jata hai. 

Universal motor ka construction DC series motor se kafi match karta hai, but thode se changes hote hai jis se wo AC power pe kaam kar sake. Is type ki electric motor AC pe zyada acche se kaam karti hai kyon ki field coil or armature dono me current ki polarity synchronously supply ke sath change hoti rehti hai. Islie resulting mechanical force rotation ki direction me consistently banti hai.

Universal Motor me stator hota hai jispe field poles hote hai. Field poles pe field coils pe wound hoti hai. Pura magnetic path, stator field circuit or armature bhi laminated hota hai. Lamination se eddy currents kam hote hai jo ki AC pe operate hone pe bante hai. Rotatory Armature wound type hota hai jisme straight ya skewed slots ke sath brushes wale commutators lage hote hai. Armature coils me current induce hone ke karan AC ka commutation poor hota hai. 

Universal motors ka starting torque zyada hota hai, high speed pe chalti hai, or compact ke sath-sath lightweight bhi hoti hai. Ye motors control karne ke lie bhi easy hoti hai. But commutators me brushes hote hai, jo ki kharab ho jate hai, islie jo motor continuous use ki hoti hai, unme use nahi hote. Or commutator ke karan, universal motors kafi awaz karti hai, dono acoustically or electromagnetically. 

Properties Of Universal Motor

Efficiency

AC power pe use karne ke baad bhi ye motors main supply se bhi zyada rotor frequency se chalti hai. Or kyun ki zyadatar sabhi electric motors ki properties speed ke sath improve hoti hai, islie ye motors lightweight or powerful hoti hai. Wese ye motors kam efficient hoti hai: smaller motors ke lie 30% or larger motors ke lie 70-75%. 

Speed-Load Characteristics

Universal Motor ka speed load characteristics bhi DC series motor ke jesa hi hota hai. Universal Motor ki speed full load pe low, or no load pe bhut high hote hai. Zyadatar required load pe required speed lane ke lie gears trains use karte hai. 

Applications

Universal motors kai home appliances me use hoti hai. Jese ki vacuum cleaners, drik and food mixers, domestic sewing machine etc. High rating wali Universal motors portable drills or blenders me use hoti hai. 

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