0
Excitation is normally used to describe the current supplied to the field winding of a motor. A motor has a rotating armature with a coil that rotates in the magnetic field produced by a fixed field coil. The current in the field coil can be taken from a series or parallel connection to the armature coil, or (usually for larger motors) it can be supplied independently via some sort of controller. Excitation can be used to control the speed of DC motors or the power factor of synchronous motors.
What else can I help you with?
What is electrical excitability?
I think you mean 'excitation'; this refers to the process by which a current sets up a magnetic field which, in turn, induces a voltage into a conductor or coil -usually applied to transformers, motors, and generators.
What is the effect of a increasing the excitation current?
Increasing the excitation current in an electrical machine, such as a generator or motor, typically raises the magnetic field strength. This can lead to an increase in output voltage for generators or enhance the torque and performance in motors. However, excessive excitation can cause saturation of the magnetic core, leading to diminished returns and potential overheating. Proper management of excitation current is essential for optimal machine performance and longevity.
What is self-independent excitation?
Self-independent excitation refers to a method of generating electrical power in synchronous machines where the excitation system operates independently of the machine's output. In this setup, an external source, often a separate generator or battery, provides the necessary excitation current to the rotor. This approach allows for greater control over the excitation process and can enhance machine stability and performance, particularly in varying load conditions. It is commonly used in power systems to ensure reliable operation and improve voltage regulation.
What is exciter in electrical?
An exciter in electrical engineering refers to a device that provides the necessary excitation current to the field winding of a synchronous machine, such as a generator. This excitation current is essential for establishing the magnetic field required for the generator to produce electrical power. Exciters can be either rotating (mounted on the same shaft as the generator) or static (using solid-state technology), and they play a critical role in regulating the output voltage and stability of the generator.
What does the electrical term amperes mean?
Amperes are units of electrical current. They measure the amount of charge passing a point in a circuit line given a set amount of time.
Excitation-contraction coupling refers especially to the means by which do what?
means by which electrical excitation of a muscle results in muscle contraction
What substance couples electrical excitation to muscle contraction?
Ca2+
ECGs trace electrical excitation to different parts of the heart?
yes
What is electrical excitability?
I think you mean 'excitation'; this refers to the process by which a current sets up a magnetic field which, in turn, induces a voltage into a conductor or coil -usually applied to transformers, motors, and generators.
Electrical excitation of muscle fiber?
Electrical excitation of a muscle fiber. Skeletal muscle fibers (cells) can be stimulated either by amotor neuron in the body or by a voltage stimulator in the lab. Stimulation given by either method results in a depolarization of the sarcolemma. If the depolarization reaches threshold, an action potential (electrical signal) is initiated.
What major tissue type transmits waves of excitation?
Nervous tissue is the major tissue type that transmits waves of excitation in the form of electrical impulses throughout the body. These electrical impulses allow for communication between different parts of the body and are essential for functions like muscle movement and sensory perception.
What rhymes with ovation?
Nation, automation, celebration, excitation, deliberation, excitation, penetrationcelebration, excitation, deliberation, excitation, penetration
What is mean by electrification in agriculture term?
Bringing public electrical power to farms, and equipping the farms with electrical devices to aid in farming.
What is an excitation signal?
An excitation signal is a signal used to stimulate a system or device. It can be a physical input, such as an electrical voltage or current, which is applied to a system to produce a desired response or output. Excitation signals are commonly used in various fields such as control systems, signal processing, and communications.
What is the effect of a increasing the excitation current?
Increasing the excitation current in an electrical machine, such as a generator or motor, typically raises the magnetic field strength. This can lead to an increase in output voltage for generators or enhance the torque and performance in motors. However, excessive excitation can cause saturation of the magnetic core, leading to diminished returns and potential overheating. Proper management of excitation current is essential for optimal machine performance and longevity.
What does the term "brown wire" mean in the context of electrical wiring?
The term "brown wire" refers to a specific color-coded wire used in electrical wiring. In some systems, the brown wire is designated for live or hot electrical connections.
Can electron excitation happen in a semiconductor nanoparticle without light or thermal energy?
Yes, electron excitation in a semiconductor nanoparticle can occur without light or thermal energy through mechanisms like electrical injection, impact ionization, or tunneling. These processes can lead to electron promotion across energy levels within the nanoparticle, resulting in excitation.
