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Give the 5 reasons for the preference of revolving field alternators over the revolving armature type of machine?
Wiki User
∙ 15y ago
Give the 5 reasons for the preference of revolving field alternators over the revolving armature type of machine?
Wiki User
∙ 15y ago
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What is armature reactions in a synchronous machine?
Armature reaction is the effect of armature flux on the flux generated by the fied windings.Cross magnetisation and Demagnetising are its consequences.
Where can one find more information about armature matches?
There are many machine which have an armature as one of the components. One can find more information about armatures on Wikipedia. If one is looking for an armature machine, the Autoline website has a wide variety for sale.
Why pole face are chamfered in dc machine?
in order to reduce armature reaction.
What are the effect of armature reaction in DC machine and how the armature reaction is minimise?
Armature reaction is the interaction between the magnetic flux produced by armature current and that of the main magnetic field in an electric motor or generator.
When was the revolving machine gun invented?
1835
What is copper armature How is it different from copper scrap?
The copper armature refers to the two principle electrical components of an electromechanical machine.
How you repair armatur wire broken wire?
It's far better to have the armature re-wound by a specialist repairer. Trying to repair reliably, a break of wire or insulation in a tightly-wound armature revolving within a stator with very little radial clearance,is not really feasible; and certainly not easy. To be honest I'd look at a new machine if possible, by exchange if available.
What is the function of armature winding of a motor?
Armature is a rotating part of the machine, the coil which wound in the core of that rotating part.
What is meant by core in electrical machine?
The armature center of a d.c. machine is typically made of overlaid sheets keeping in mind the end goal to, (a) lessen hysteresis misfortune , (b) diminish armature copper misfortunes.
Why the induction motor does not have armature reaction?
Because the armature (or rotor) has no external connection. The currents that produce torque from the rotor are induced by the magnetic field in the machine, so there is no commutator, no brushes and no armature reaction.
What is meant by strokes in a tattoo machine?
stroke is the distance of travel of the armature bar.
What is armature reaction in dc motor?
Armature reaction is effect of armature flux on main field flux. Basically there are two windings in a dc motor - Armature winding (on stator) and field winding (on rotor). When we excite the field winding, it produces a flux which links with the armature. This causes an emf and hence a current in the armature. This current in armature produces another flux which lags the main flux. This is referred to as armature reaction. It has two effects on the machine: 1. Demagnetising effect: It reduces the strength of the main flux. 2. Crossmagnetising effect: Its effect is that it bends/distortes the the main flux line along the conductor
