How to clear alarms from ABB relay protection

Alarms on ABB protection relays, such as the REF615, can be cleared using the Clear button on the Local HMI or via the Web HMI interface.Clearing Alarms via Local HMIAccess the Clear Menu: Press the Clear button on the relay's Local Human-Machine Interface (LHMI) to activate the Clear view .Select Items to Clear: Use the Up or Down arrow buttons to navigate through items such as Indications, LEDs, or programmable alarms that can be cleared .Confirm Clearing: Press Enter, adjust the value if needed using the arrow buttons, and press Enter again to clear the selected alarm .Shortcut for LEDs: Pressing the Clear button for three seconds will clear all alarm LEDs quickly .Clearing Alarms via Web HMILog In: Access the Web HMI and ensure you are authorized to edit values .Navigate to Alarm Settings: Go to Main Menu → Settings or the relevant alarm/indication section.Select and Clear: Choose the alarms or trip indications to clear and confirm the action. Changes are committed to the relay's memory once confirmed .Notes on Trip IndicationsSome alarms are latching, meaning they remain active until manually cleared, even after the fault is resolved .Trip circuit supervision (TCS) alarms, such as TCSSCBR1 or TCSSCBR2, indicate a fault in the trip circuit and must be cleared after resolving the underlying issue .Best PracticesAlways verify the cause of the alarm before clearing to avoid masking unresolved faults.Use the Clear function responsibly to maintain accurate event logs and system reliability.Refer to the relay's operation manual for model-specific instructions and safety precautions . By following these steps, you can effectively acknowledge and clear alarms on ABB relay protection devices, restoring normal operation while maintaining proper event tracking.