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Tuesday, May 6, 2008

IEC 61850 FEATURES

IEC 61850 features include:

  1. Data Modeling -- Complete functionality of the substation is modelled into different standard logical nodes which can be grouped under different logical devices. There are logical nodes for data/functions related to the logical device (LLN0) and physical device (LPHD).
  2. Reporting Schemes -- There are various reporting schemes (BRCB & URCB) for reporting data from server through a server-client relationship which can be triggered based on pre-defined trigger conditions.
  3. Fast Transfer of events -- Generic Substation Event (GSE) are defined for fast transfer of event data for a peer-to-peer communication mode. This is again subdivided into GOOSE & GSSE
  4. Setting Groups -- The setting group control Blocks (SGCB) are defined to handle the setting groups so that user can switch to any active group according to the requirement.
  5. Sampled Data Transfer -- Schemes are also defined to handle transfer of sampled values using Sampled Value Control blocks (SVCB)
  6. Commands -- Various command types are also supported by IEC 61850 which include direct & SBO commands with normal and enhanced securities.
  7. Data Storage-- SCL(Substation Configuration Language) is defined for complete storage of configured data of the substation in a specific format.

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