i want to know about the advantage and disadvantages
The lap winding is used in dc generators designed for high-current application
Both lap winding and wave winding are found in the use of DC generators. The main difference is as follows: lap winding is high current, low voltage, and wave winding is low current, high voltage.
In electrical machines such as motors and generators, the field winding is responsible for producing a magnetic field within the machine. This magnetic field interacts with the armature winding, which carries the electric current and generates mechanical power. The field winding typically has fewer turns of thicker wire compared to the armature winding, which has more turns of thinner wire to handle higher currents.
Most do, but not all. Some have a separate exciter winding.
The field winding in the stator is exposed to the full current generated by the rotor's winding.
compensating winding is used for equal load sharing of two generators running in parallel. while interpole winding is used to minimise the effect of armature reaction by supporting the main field.
The lap winding is used in dc generators designed for high-current application
Both lap winding and wave winding are found in the use of DC generators. The main difference is as follows: lap winding is high current, low voltage, and wave winding is low current, high voltage.
1. In Shunt generators armature current is equal to sum of field current and load current whereas in series generators field current and load current is same. 2. Shunt generators field winding has high resistance and large no of turns as compared to series generators. 3. Shunt generator field winding has thin conductor and series generator has thick.
compensating windings are used to overcome armature reaction
In electrical machines such as motors and generators, the field winding is responsible for producing a magnetic field within the machine. This magnetic field interacts with the armature winding, which carries the electric current and generates mechanical power. The field winding typically has fewer turns of thicker wire compared to the armature winding, which has more turns of thinner wire to handle higher currents.
by using multitester
Most do, but not all. Some have a separate exciter winding.
The field winding in the stator is exposed to the full current generated by the rotor's winding.
generators have two types of winding , * at armature also called armature winding( winding around shaft , we can say), which is the moving part. note that armature also consists of magnets along with windings. hence produces field arount it. * and at stator also called field winding, because when armature rotates its flux(field) is cutted by the stator windings and produces mutually induced e.m.f in it( in stator windings off course) causing current to flow. this current also produces some electric field around it which is in return cutted by the armature windings hince a little amount of e.m.f ( also called back e.m.f) produced in armature due to stator winding current. know this current in armature (due to back e.m.f produced by stator winding) produces additional field , hence causing more current in stator winding. this is the reason that why stator windings are called field winding( as they cause electric field of armature stronger and cause more current in output). note that out put is taken from the stator windings in generators.
A current relay operates by monitoring the current flowing through the start winding of a motor. When the motor reaches a predetermined speed, the current in the start winding decreases. This drop in current activates the relay, which opens its contacts and disconnects the start winding from the circuit, allowing the motor to run efficiently on the run winding alone. This process helps prevent overheating and damage to the start winding.
Advantage: Wave winding provides a higher voltage output compared to lap winding with the same number of turns in the armature. This winding type also allows for better cooling due to the interleaved nature of the winding. Disadvantage: Wave winding is more complex to construct and repair compared to lap winding. It also requires more insulation material between the turns, which can increase the overall size of the winding.