muuntaja

noun
  1. A device that changes the voltage of an electrical current, typically used to increase or decrease the voltage in power lines. noun
    The muuntaja is essential for converting high voltage from power plants to a lower voltage suitable for home use.
    During the storm, the muuntaja was damaged, causing a power outage in the area.
  2. In a broader sense, it can refer to any device or mechanism that transforms or converts one form of energy or signal into another. noun
    The audio muuntaja converts digital signals into analog signals for the speakers.
    Engineers are working on a muuntaja that can efficiently convert solar energy into electricity.