Areva MiCOM P341, Operation Manual

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Operation Guide P341/EN O/B11
Introduction CHAPTER 1
MiCOM P341 Page 5/22
Note: *May vary according to relay type/model
Chapter 2 Installation (includes a copy of publication P341/EN BR/Bc)
Recommendations on unpacking, handling, inspection and storage of the relay. A
guide to the mechanical and electrical installation of the relay is provided
incorporating earthing recommendations.
Chapter 3 Commissioning and Maintenance
Instructions on how to commission the relay, comprising checks on the calibration
and functionality of the relay. A general maintenance policy for the relay is outlined.
Chapter 4 Problem Analysis.
Advice on how to recognise failure modes and the recommended course of action.
Appendix A Relay Menu Database: User interface/Courier/Modbus/IEC 60870-5-
103/DNP 3.0
Listing of all of the settings contained within the relay together with a brief description
of each.
Appendix B External Connection Diagrams
All external wiring connections to the relay.
Appendix C Hardware / Software Versions
Repair Form
3. USER INTERFACES AND MENU STRUCTURE
The settings and functions of the MiCOM protection relay can be accessed both from
the front panel keypad and LCD, and via the front and rear communication ports.
Information on each of these methods is given in this section to describe how to get
started using the relay.
3.1 Introduction to the relay
3.1.1 Front panel
The front panel of the relay is shown in Figure 1, with the hinged covers at the top
and bottom of the relay shown open. Extra physical protection for the front panel can
be provided by an optional transparent front cover. With the cover in place read only
access to the user interface is possible. Removal of the cover does not compromise
the environmental withstand capability of the product, but allows access to the relay
settings. When full access to the relay keypad is required, for editing the settings, the
transparent cover can be unclipped and removed when the top and bottom covers
are open. If the lower cover is secured with a wire seal, this will need to be removed.
Using the side flanges of the transparent cover, pull the bottom edge away from the
relay front panel until it is clear of the seal tab. The cover can then be moved
vertically down to release the two fixing lugs from their recesses in the front panel.