field coil
Noun: A field coil is an electrical component consisting of a coil of insulated wire. Its primary function is to generate a magnetic field when an electric current passes through it. Specifically, it is the electric coil wound around a field magnet in an electric machine (such as a motor or generator) to produce the magnetomotive force necessary to establish the magnetic flux required for the machine's operation.
The term "field coil" is used to describe a specific, essential part within electromagnetic machines. It is a technical term common in electrical engineering and physics. * In a DC generator, the field coil creates the stationary magnetic field that the armature rotates within. * The strength of the electromagnet can be adjusted by varying the current supplied to the field coil.
- The technician replaced the burnt-out field coil to restore the motor's function.
- A shunt-wound motor has its field coil connected in parallel with the armature.
- The design ensures the field coil is properly cooled during operation.
- Field Winding: This is a synonymous term often used interchangeably with "field coil," emphasizing its function as a winding that creates the field.
- Excitation: The process of supplying current to the field coil is called "exciting the field." The coil itself may be referred to as the "excitation winding" or "exciter coil" in certain contexts, particularly in alternators and large generators.
- Field Winding (n): A direct synonym for field coil.
- Electromagnet (n): A broader term for a magnet created by an electric current flowing through a coil; a field coil is a type of electromagnet designed for a specific purpose in a machine.
- Solenoid (n): A coil of wire that acts as an electromagnet when carrying current, often designed to produce linear motion. While similar in construction, a solenoid is typically a distinct component from a field coil, which is intended to produce a stationary magnetic field.
- Field winding
- Excitation winding (in specific contexts)
- To excite the field: To supply electrical current to the field coil.
- A separate DC source is sometimes used to excite the field in a synchronous motor.
- Shunt field coil / Series field coil: These phrases specify how the field coil is connected within the motor or generator's circuit (in parallel or in series with the armature).
- the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machine