rotor coil

6.3

Coiled wire on the motor's rotating part that carries electric current and makes it turn

noun
/ˈroʊtər kɔɪl/

Specialized

: bobina del rotor

The engineer designed a new rotor coil to increase the motor's efficiency.

Examples

This is made possible by combining a skew-wound ironless rotor coil with a powerful neodymium magnet.

Academic text (2003)
In both machines, superconducting wire forms the rotor coils only.

Academic text (2001)
As a result, stators, rotor coils, refrigerators, exciters, and torque transfers are different between the two models, Mulholland said.

Academic text (2001)
A malfunction in the rotor coil caused the generator to stop working properly.
Replacing the rotor coil improved the performance of the electric vehicle.

Synonyms

rotor

vsrotor coil

Specialized

2 5.2

A part inside a motor that turns inside the fixed outer part to make or use electricity

is the rotating current carrying component that interacts with magnetic fields to produce motion

armature

vsrotor coil

Specialized

1 8.1

A coil of wire inside a motor or generator that makes electricity when it turns in a magnetic field

is the rotating current carrying component rather than the general part where voltage is induced

Surface Forms

rotor coil singular

rotor coils plural

Morphology

rotor + coil

Both constituents ('rotor' = rotating part; 'coil' = wound wire) combine compositionally to yield the meaning 'the winding on the rotating part of a motor/generator.' This noun–noun combination follows a regular compositional pattern and would be predictable to a learner who already knows the two words, so it is transparent.

Etymology

Rotor coil combines rotor (the part that 'turns') and coil (a 'loop of wire'). Imagine a loop of wire wrapped on a wheel that spins inside a motor — that spinning wire is the rotor coil, and because it carries electricity while turning it helps the machine make motion or produce electricity.