Unlike the traditional hardwired, inter-device signaling, peer-to

peer communication over a switched Ethernet LAN offers an

advanced and versatile platform for power system protection.

Among the distinctive features of the protection system

approach, enabled by the full implementation of the IEC 61850

substation automation standard, are fast communication

capability, continuous supervision of the protection and

communication system’s integrity, and flexible reconfiguration

and upgrades. This protection relay series is able to optimally

use the interoperability provided by the IEC 61850 Edition 2

features.

At substation level, COM600S uses the data content of the bay

level devices to enhance the substation level functionality.

COM600S features a Web browser-based HMI, which provides

a customizable graphical display for visualizing single-line

mimic diagrams for switchgear bay solutions. The Web HMI of

COM600S also provides an overview of the whole substation,

including relay-specific single-line diagrams, which makes

information easily accessible. Substation devices and

processes can also be remotely accessed through the Web

HMI, which improves personnel safety.