(1) what are the functions of commutator ? (2)what are the functions of armature?
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The armature, in contrast, must carry current, so it is always a conductor or a conductive coil, oriented normal to both the field and to the direction of motion, torque (rotating machine), or force (linearmachine). The armature's role is twofold. The second role is to generate an electromotive force (EMF)
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine.
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine.
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(1) Function of commutator: To keep the torque on a DC motor from reversing every time the coil moves through the plane perpendicular to the magnetic field, a split-ring device called a commutator is used to reverse the current at that point.
(2)The armature, in contrast, must carry current, so it is always a conductor or a conductive coil, oriented normal to both the field and to the direction of motion, torque (rotating machine), or force (linear machine). The armature's role is twofold. The second role is to generate an electromotive force (EMF).
(2)The armature, in contrast, must carry current, so it is always a conductor or a conductive coil, oriented normal to both the field and to the direction of motion, torque (rotating machine), or force (linear machine). The armature's role is twofold. The second role is to generate an electromotive force (EMF).
Almost whole of the world uses 50HZ frequency and a voltage of 220-240 v From the economical point of view we are using 50HZ frequency For example , The prime movers such as steam turbine,gas turbine etc..The effiency of prime mover will be maximum at 50 HZ I.e transmission losses is also less at this frequency
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From the economical point of view we are using 50HZ frequency For example , The primemovers such as steam turbine,gas turbine etc..The effiency of primemover will be maximum at 50 HZ I.e transmission losses is also less at this frequency