Wednesday, May 13, 2009

IEC 61850-9-2 LE - Process Bus Support by ABB and others

The IEC 61850-9-2 LE (Lite Edition) is key for the first implementations of the IEC 61850 Process Bus. The 9-2 LE edition defines two specific profiles for the exchange of sampled values:

  • 80 samples per nominal period for protection applications; one set of samples is sent immediately in one SMV message.
  • 256 samples per nominal period for metering applications; eight sets of samples are sent in one SMV message.

Click HERE to download the IEC 61850-9-2 LE (Users Guide) from the UCA International Usersgroup.

ABB stated that "Based on the new technologies ..., the substation footprint can be reduced by more than 50 percent, while at the same time increasing its availability and reliability."

Click HERE for a report from ABB on first experiences with the IEC 61850 Process Bus.

It could be expected that sampled values and GOOSE messages on a process bus will be used in larger scales in about two to four years.

Click HERE for some information of the process bus pilot under way at RWE (Germany - the second biggest German utility). SCC/NettedAutomation is involved with HesoTech (Germany) in the transformer monitoring system based on IEC 61850.

Click HERE for a Paper on the pilot project (in German).


Jason said...

Is the 618680 9-2 User Guide somethng that should be made available to all via the link?

Anonymous said...

The 9-2LE User Guide is freely available from the UCA IUG web site.

There are several products on the market including the Schniewindt Stand Alone Merging Unit which accepts conventional CT/VT inputs and has a version suitable for yard installation