Generator is a machine which converts mechanical energy into electrical energy.
For conversion of mechanical energy in to electrical energy, it uses electromagnetic induction principle.
For electromagnetic induction to happen, three things are required.
These are:
So, when the conductor starts rotating through the magnetic field or the magnetic field cuts the conductor, emf( electromotive force) or voltage is induced in the conductor.
So, the conductor in which the voltage is induced in it is known as armature
There is not enough information to answer the question. A DC generator is never described in kVA because DC generators are specified in terms of kilowatts.
Voltage regulation of a separately excited generator is generally better than that of a shunt excited generator because it allows for independent control of the excitation level. In a separately excited generator, the excitation current can be adjusted without being influenced by the load current, leading to more stable output voltage under varying load conditions. In contrast, a shunt excited generator's field winding is connected in parallel with the load, making voltage regulation more susceptible to changes in load, which can lead to voltage fluctuations. Thus, the separate excitation enhances performance in terms of maintaining a constant voltage.
In general terms, 'excitation' simply describes the process by which an electric current produces a magnetic field. But, more specifically, it refers to the creation of the magnetic field by the field windings of a motor or generator. In the case of an alternator, for example, the armature windings (the windings into which voltages are induced) are stationary, and inserted into slots cut into the inner face of the stator. The field is then provided by the rotor which is supplied (via slip rings) with a 'excitation' current provided by an external d.c. voltage.
The range of armature resistance in a DC motor typically varies from a few ohms to several tens of ohms, depending on the motor's size and design. Smaller motors may have armature resistances as low as 1-5 ohms, while larger industrial motors can have resistances ranging from 10 to 50 ohms or more. The resistance affects the motor's efficiency and performance, particularly in terms of voltage drop and heat generation during operation.
Electrical power = current x voltage Current is in amps
The terms 'shunt' and 'armature' apply to a particular type of d.c. motor, in which the field windings are connected in parallel with the armature windings. 'Shunt' is an archaic term for 'parallel', so the term 'shunt', in this context, means that the field winding is connected in parallel with the armature winding. The terms 'shunt current' and 'armature current', then describe the currents flowing in the shunt winding and armature winding, respectively.
There is not enough information to answer the question. A DC generator is never described in kVA because DC generators are specified in terms of kilowatts.
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.
There is no such thing as an AC generator, if it's DC it's a generator, if it's AC, it's an alternator.CommentThe above answer isn't correct, as 'generator' is a generic term applied to both d.c. and a.c. machines. It is perfectly correct to use the terms 'd.c. generator' or 'a.c. generator'. It is also correct to call an a.c. generator an 'alternator'.To answer the question, an a.c. generator can be broken down into two main parts: the 'stator' (stationary part) and the 'rotor' (rotating part). The field winding is part of the rotor assembly, and the armature windings (the windings into which the generated voltages are induced) are part of the stator assembly.
coil span or coil pitch is defind as the distance mesured in terms of armature slots(or armature conductors) between two sides of a coil.
The amount of electricity going into a generator is variable and depends on the energy demand or load being drawn from the generator. Generators are typically rated in kilowatts (kW) or megawatts (MW) to indicate their capacity to produce electricity. The rate at which electricity is supplied to a generator is often measured in terms of power, which is the product of voltage and current.
Electricity generators were often traditionally called magnetos (especially on automoblies and tractors) and are also called alternators. Generally speaking, alternators and magnetos produce AC (alternating current), while generators produce DC (direct current), thought the terms are often used without regard to the type of current produced.
Drive shaft,Strong magnet,Coil of wire
What are terms relevant to current in engineering equipment
In general terms, 'excitation' simply describes the process by which an electric current produces a magnetic field. But, more specifically, it refers to the creation of the magnetic field by the field windings of a motor or generator. In the case of an alternator, for example, the armature windings (the windings into which voltages are induced) are stationary, and inserted into slots cut into the inner face of the stator. The field is then provided by the rotor which is supplied (via slip rings) with a 'excitation' current provided by an external d.c. voltage.
It uses magnetic field to turn motion into electricity
Of course! Using any kind of generator can result in you breaking the terms of use, which will result in banning.