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标题: Relay Field Testing: Ensuring the Reliability and Safety of Protection Systems Relay field testing is an essential procedure in the commissioning and maintenance of electrical protection systems. These systems are responsible for safeguarding electrical equipment and ensuring the overall stability of power grids. Field testing, which is performed on-site at power plants, substations, and transmission lines, serves as the final verification to ensure that protection devices will operate as expected when needed. What is Relay Field Testing? Relay field testing refers to the process of testing protection relays in real-world conditions to ensure they perform correctly under fault scenarios. Protection relays are critical components in electrical power systems, designed to detect abnormal conditions such as short circuits, overloads, or faults, and then trigger actions such as tripping circuit breakers to protect the system.