design of electromagnets
DESCRIPTION
Very fundamental procedure for design of electromagnet has been lucidly narrated.TRANSCRIPT
Design of Electromagnets
Road Map
Design of electromagnetic coil • Basic equations• Calculation of R of coil and size of conductor • MMF requirement • Total winding area• Temperature rise of coil• Space factor
Magnetic force expression Index number of electromagnet Lifting magnets
• Flat-faced armature type• Horse shoe type• Plunger type
Design of electromagnetic coil
Design of electromagnetic coil
Calculation of R of coil and size of conductor
Design of electromagnetic coil
Design of electromagnetic coil
Note: A standard diameter of the conductor or wire is selected from SWG table. The resistivity of copper conductor at working temperature is found out by following expression
Design of electromagnetic coil
Design of electromagnetic coil
Design of electromagnetic coil
Design of electromagnetic coil
Design of electromagnetic coil
Design of electromagnetic coil
Index Number:
Electromagnets (Ems):
Classification of Ems•Tractive type: solenoids, mechanical movement of armature to do work, operated either from AC or DC, applications in relays, telephone receivers, CB etc•Portative type: for holding purpose, operated on only DC, applications in lifting magnets, magnetic clutches & couplings etc Three types (lifting magnets):•Flat-faced armature type•Horse shoe pole type•Plunger type
• Flat-faced armature type design
• Flat-faced armature type design
• Flat-faced armature type design