Transformer failure occurs when a transformer, an essential component in electrical systems, stops functioning properly. This can happen due to various reasons, including overheating, insulation breakdown, or external factors like lightning strikes. When a transformer fails, it can disrupt the supply of electricity, leading to outages and potential damage to connected equipment. Preventive maintenance and regular inspections are crucial to minimize the risk of transformer failure. Monitoring factors such as temperature, humidity, and electrical load can help identify potential issues early. Addressing these problems promptly can extend the lifespan of the transformer and ensure reliable power distribution.