A Power transformer is an electrical device that transfers AC (alternating current) power between circuits by changing voltage levels, either increasing (“step-up”) or decreasing (“step-down”) it without altering the frequency. It operates on the principle of electromagnetic induction, using two or more coils to create a changing magnetic field that induces a voltage in another coil, all without a physical electrical connection. Transformers are crucial for efficient and safe power transmission and distribution, allowing electricity to be transported at high voltages over long distances and then stepped down for safe use in homes and businesses.
