High-voltage engineering is a branch of electrical engineering that focuses on the design, testing, and maintenance of systems that operate at high voltages, typically above 1,000 volts. This field is crucial for the transmission of electricity over long distances, ensuring that power can be delivered efficiently from power plants to substations and ultimately to consumers. Professionals in high-voltage engineering work with various components, including transformers, cables, and switchgear. They must understand the principles of electrical insulation, safety standards, and the behavior of electrical arcs to prevent failures and ensure reliable operation in high-voltage environments.