Sir I have a doubt ,why do we connect the shunt and Hold on Coil in 3 point starters or both seperately in 4 point starters to stud 1 of the starting resistance? Why don't we connect it directly across supply voltage so that shunt current and flux are more independent and constant,unlike in this case when we cut through the starting resistance ,the shunt current has to go through the portion cut out and in fully cut position it's equivalent to the full starting resistance being connected in series to the shunt coil? Thank you in advance
At torque proportionality when flux will resultant, armature or filed? because at time of discussion of series motor it became (Ia)square and at 2.26 it is (If)(Ia).
Sir, I got a little bit confused because when we talk about series motor torque became proportional to armature current square now we are using product of armature and field current.
If I am saying torque is proportional to armature current square in the series motor (because all currents are equal) and in shunt motor, it is a product of armature and field current. Is it right? Do both time torques have different equations? According to ur eq that Torque is proportional to the product of armature and field flux. Pls tells us this .
@@lecturesinelectricaleng Sir, in which lecture we study this? I remember that we had only driven the torque eq and there we don't get this kind of proportionally. Pls explain it.
Sir Why is it said in Theraja sir book that small dc motors have higher armature resistance than larger dc motors and hence less starting current Thank you in advance
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Excellent lecture Sir. Thanks 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏
awesome video sir! THank you!
Sir starting methods only shunt motor ke unnaya
Series motor ki levaa sir
Sir, please provide numerical problems for the topics that you teach that would be a great help.
Sir I have a doubt ,why do we connect the shunt and Hold on Coil in 3 point starters or both seperately in 4 point starters to stud 1 of the starting resistance?
Why don't we connect it directly across supply voltage so that shunt current and flux are more independent and constant,unlike in this case when we cut through the starting resistance ,the shunt current has to go through the portion cut out and in fully cut position it's equivalent to the full starting resistance being connected in series to the shunt coil?
Thank you in advance
Sir, 2 point starter is also there know ?
Sir at 19:49 how I1/I2 equals R1/R2
At torque proportionality when flux will resultant, armature or filed? because at time of discussion of series motor it became (Ia)square and at 2.26 it is (If)(Ia).
@@lecturesinelectricaleng we study it when we study series motor.
Sir, I got a little bit confused because when we talk about series motor torque became proportional to armature current square now we are using product of armature and field current.
If I am saying torque is proportional to armature current square in the series motor (because all currents are equal) and in shunt motor, it is a product of armature and field current. Is it right? Do both time torques have different equations? According to ur eq that Torque is proportional to the product of armature and field flux. Pls tells us this .
@@lecturesinelectricaleng thanks sir
@@lecturesinelectricaleng Sir, in which lecture we study this? I remember that we had only driven the torque eq and there we don't get this kind of proportionally. Pls explain it.
Sir
Why is it said in Theraja sir book that small dc motors have higher armature resistance than larger dc motors and hence less starting current
Thank you in advance
Thank you so much