A comprehensive testing program should simulate fault and normal operating conditions of the relay. Acceptance testing, commissioning, and startup will include control power tests, current transformer and potential transformer tests, and any other device testing associated. The testing and verification of relay protection devices can be divided into four groups: Type tests are needed to prove that a protection relay meets the claimed specification and follows all relevant standards. Megger's smart relay testing solutions and expert support help you validate protection performance, improve system reliability, and ensure continuity of power across your network. The role of live load verification Live load verification is a task that must be carried out when. Therefore, the purpose of carrying out load verification for the newly installed relay protection device is to ensure that the phase (current) phase and polarity of the line protection to be directional are correct; and to ensure access to each of the differential protection circuits The relative. Relay testing is the process of verifying that protective relays are calibrated correctly and functioning accurately.