primary winding
Definition
Noun: - The main input coil in a transformer: A "primary winding" is the coil of wire in a transformer or induction device that is connected to the source of electrical power. A changing electric current in this coil creates a changing magnetic field, which then induces a voltage and current in a separate, secondary coil.
Usage
The term is used specifically in the context of electrical engineering and physics to describe the input side of a transformer or inductive coupler. - The voltage applied to the primary winding determines the voltage induced in the secondary winding. - Engineers calculated the number of turns needed for the primary winding.
Advanced Usage
- "primary winding of a transformer": This is the most common full technical phrase, specifying the device.
- The fault was traced to a short circuit in the primary winding of the transformer.
Variants and Related Words
- Primary coil: A direct synonym for "primary winding."
- Primary: Often used as a shortened, informal form in technical contexts (e.g., "the primary").
- Secondary winding / Secondary coil: The output coil in which current is induced by the primary winding.
Synonyms
- Primary coil
- Input coil (context-dependent)
Related Phrases
- To be wound on the same core: Describes the physical relationship between the primary and secondary windings.
- Both the primary winding and the secondary winding are wound on the same iron core.
Noun
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coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit
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current through the primary coil induces current in the secondary coil
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