Document conventions - Arc protection - Merging unit - Motor protection - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Interconnection protection - Busbar differential protection (high impedance) - Generator protection - Power management/Load shedding - Back-up protection - DNP3 Communication Manual - 615 series Relion Protection and Control - Relion 615 series - 5.0 FP1 IEC - IEC - 22.05.2023

A particular convention may not be used in this manual.

• Abbreviations and acronyms in this manual are spelled out in the glossary. The glossary also contains definitions of important terms.

• Push-button navigation in the LHMI menu structure is presented by using the push-button icons.

  To navigate between the options, use and .

• HMI menu paths are presented in bold.

  Select Main menu > Settings.

• LHMI messages are shown in Courier font.

  To save the changes in non-volatile memory, select Yes and press .

• Parameter names are shown in italics.

  The function can be enabled and disabled with the Operation setting.

• Parameter values are indicated with quotation marks.

  The corresponding parameter values are "On" and "Off".

• IED input/output messages and monitored data names are shown in Courier font.

  When the function starts, the START output is set to TRUE.

• This document assumes that the parameter setting visibility is "Advanced".