The reduction in the effective magnetic lines of force, produced by the armature current.


Related Terms

MAGNETIC MICROPHONE

[ENG ACOUS] A microphone consisting of a diaphragm acted upon by sound waves and connected to an armature which varies the reluctance in a magnetic field surrounded by a coil. Also known as reluctance microphone; variable-reluctance microphone.

ARMATURE COIL

The loop or coil of copper wire, placed on the armature core, and forming part of the winding.

ARMATURE

the rotating part of an electric motor or generator. The moving part of a relay or vibrator.

ARMATURE VARNISH

Is a liquid put on the field and armature windings, to improve the insulation of the cotton covering on the wires.

ARMATURE SLOT

The groove or slot in the armature core, into which the coils or windings are placed.

EDDY CURRENT

Currents caused by changing magnetic fields produced in armature and field cores of electrical machines that tend to interfere with the production of emf in the armature windings.

LAMINATIONS

Thin sheets of magnetic steel or iron that are used in armature and magnetic pole cores to reduce the production of eddy currents. The laminations increase the electrical resistance of the core material.

ARMATURE REACTION

The effect caused by the interaction of the magnetic field of the current carrying conductors in the armature with the main magnetic field. The two magnetic fields combined cause a distortion in the overall magnetic field that results in a shift in the neutral plane in the direction of armature rotation.

SERIES GENERATOR

A generator in which the field windings are connected in series with the armature windings so that the current induced in the armature also flows through the field windings.

BALANCED ARMATURE UNIT

Driving unit used in magnetic loudspeakers, consisting of an iron armature pivoted between the poles stair flight. ing winder. A valve having equal fluid pressure in both the opening and closing directions.

Related questions

MarineProHelp 2018 - 2020