Tap changers are essential components in electric locomotives, enabling smooth voltage regulation for traction motors. They adjust the transformer’s output voltage by changing the taps, ensuring optimal power delivery. Indian Railways primarily uses on-load tap changers, which allow voltage adjustments without interrupting the power supply.
These devices are crucial for maintaining consistent speed and traction, especially during acceleration and deceleration. Equipped with features like circulating pumps and filters, tap changers ensure long-term reliability by keeping the selector oil clean. Their efficient operation is vital for the seamless performance of electric locomotives across India’s vast railway network.
