Transformers are widely used in daily life and industry. For example:
Household electricity: A step-down transformer is used to reduce high voltage to approximately 220V to meet household power needs.
Lighting: Certain lighting fixtures require isolation transformers to reduce the impact of power supply noise on the lamps and improve lighting quality.
Motors: A step-down transformer is used to reduce high voltage to an appropriate voltage level to meet motor operating requirements.
Transmission lines: During power transmission, a step-up transformer is used to increase low voltage to a high voltage level for long-distance transmission.