A Buchholz relay is a critical safety device utilized in oil-filled power transformers, specifically designed to monitor the accumulation of explosive gases that may arise from dielectric failures, including leaking currents, arcs, and flashovers. When a serious internal fault, such as a turn-to-turn fault (TTF), occurs within the transformer, the surge of oil flow generated during this event activates the relay, triggering a contact connection that promptly disconnects the main circuit of the transformer. This swift action is essential for protecting the transformer from damage. As a leading supplier in China, our factory ensures that our Buchholz relays meet the highest standards for reliability and safety, making them an essential component for any power transformer system.