field winding
Học thuậtThân thiện
Definition
- Noun:
- A specialized electrical coil: A "field winding" is the insulated wire coil wound around the field magnet (the stationary part) in an electric motor or generator.
- Function in an electric machine: Its primary purpose is to carry electric current to produce the magnetic field (magnetomotive force) necessary for the machine's operation. This magnetic field is essential for generating torque in a motor or voltage in a generator.
Usage Examples
- Noun:
- The technician carefully inspected the field winding for any signs of insulation damage.
- In a DC generator, the field winding is connected to a direct current source to create a steady magnetic flux.
Advanced Usage
- "To energize the field winding": To supply electrical power to the field winding to create its magnetic field.
- Before starting the large motor, engineers must first energize the field winding.
Variants and Related Words
- Field coil: A direct synonym for "field winding."
- Exciter winding: A specific type of field winding used to provide initial excitation in some generators.
- Armature winding: The other main winding in an electric machine, which is the rotating part that carries the load current, in contrast to the stationary field winding.
Synonyms
- Field coil: The most common and direct synonym.
- Exciter: In specific contexts, particularly for generators.
Related Technical Phrases
- Shunt field winding: A field winding connected in parallel (shunt) with the armature circuit.
- Series field winding: A field winding connected in series with the armature circuit.
- Separately excited field: A configuration where the field winding receives power from a source independent of the machine's main power circuit.
Noun
- the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machine