transformer

[trans-fawr-mer]

noun

1. a person or thing that causes or undergoes a change in appearance, structure, character, etc.

2. Electricity.,  an electric device consisting essentially of two or more windings wound on the same core, which by electromagnetic induction transforms electric energy from one set of one or more circuits to another set of one or more circuits such that the frequency of the energy remains unchanged while the voltage and current usually change.

3. Computers.,  Also transformer model a type of neural network that uses statistical relationships between sequential data, such as words and sentences, to learn context and produce output.

transformer

/ trænsˈfɔːmə /

noun

1. a device that transfers an alternating current from one circuit to one or more other circuits, usually with an increase ( step-up transformer ) or decrease ( step-down transformer ) of voltage. The input current is fed to a primary winding, the output being taken from a secondary winding or windings inductively linked to the primary

2. a person or thing that transforms

transformer

1. A device used to change the voltage of an alternating current in one circuit to a different voltage in a second circuit, or to partially isolate two circuits from each other. Transformers consist of two or more coils of conducting material, such as wire, wrapped around a core (often made of iron). The magnetic field produced by an alternating current in one coil induces a similar current in the other coils.

2. ◆ If there are fewer turns on the coil that carries the source of the power than there are on a second coil, the second coil will provide the same power but at a higher voltage. This is called a step-up transformer.

3. ◆ If there are fewer turns on the second coil than on the source coil, the outgoing power will have a lower voltage. This is called a step-down transformer.

4. Compare converter rectifier

transformer

1. A device used to transfer electrical energy from one circuit to another. With an alternating current, a transformer will either raise or lower the voltage as it makes the transfer.

Word History and Origins

Origin of transformer¹

First recorded in 1595–1605; transform + -er ¹

Example Sentences

The drone detonated when it fell and damaged a transformer, but radiation levels were normal and there were no casualties, a post from the plant's account on messaging app Telegram said.

From BBC

That caused the oil which is used to cool the transformer to catch fire, and took two transformers offline, cutting power to Heathrow.

From BBC

The blast, on the second day of the high-school finals on Wednesday, occurred at an electricity transformer, said Abel Assaye from the Bangui community hospital.

From BBC

They were watching that night during Hurricane Milton last summer when a transformer exploded over my head, and that is a little scary.

From Los Angeles Times

Photos shared on social media show a white dump truck filled with dirt resting against the red brick building with a power transformer on the ground.

From Los Angeles Times

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