step-down transformer

/'step'ʌptræns'fɔ:mə/

Thân thiện

An engineer installs a step-down transformer on a utility pole.

Definition

1. Noun:
   • A transformer that reduces voltage: A step-down transformer is an electrical device that decreases the voltage from its input (primary) side to a lower voltage on its output (secondary) side. It operates on the principle of electromagnetic induction.

Usage Examples

• Noun:
  • The power supply uses a step-down transformer to convert 240V mains electricity to a safer 12V for the device.
  • For this experiment, we need a step-down transformer to reduce the voltage from the outlet.

Advanced Usage

• Technical Context: In power distribution, a step-down transformer is crucial for delivering usable, lower-voltage electricity to residential and commercial buildings from high-voltage transmission lines.
  • The substation near the neighborhood contains a large step-down transformer.

Variants and Related Words

• Transformer (n): A general device that transfers electrical energy between circuits through electromagnetic induction, which can step voltage up or down.
• Step-up transformer (n): A transformer that increases voltage from the primary to the secondary winding.

Synonyms

• Voltage reducer: A descriptive term for a device that lowers voltage.
• Reducing transformer: Another term for a step-down transformer.

Related Phrases

• To step down voltage: The action performed by this device.
  • The circuit is designed to step down the voltage for the microcontroller.

Học thuật

Noun

1. a transformer that reduces voltage