IEC 61850-90-3: Using IEC 61850 for condition monitoring diagnosis and analysis

IEC TC 57 is working on a new part of the IEC 51850 series (public available specification; draft 287 pages):

PRECD PAS 61850-90-3 ED1: Using IEC 61850 for condition monitoring diagnosis and analysis

Excerpt from introduction:

"The CMD (Condition Monitoring Diagnosis) which diagnoses power grid health status has been one of the major issues to improve the reliability of the power system by preventing a potential failure in advance. Since too many different information modelling, information exchange, and configuration techniques for CMD in various forms from many vendors are currently used, they need to be standardized within the IEC.

IEC 61850 is intended to be used to communicate with the condition monitoring equipment. A seamless communication with the sensor network is also desirable."

Here is an excerpt of the various use-cases (Power Transformer):

Some Logical Nodes for power transformer monitoring:

1. SLTC Tap-changer supervision
2. SVAM Vibroacoustic OLTC supervision
3. SDBR Dehydrating breather supervision
4. SPRD Pressure relief device supervision
5. SBHR Buchholz relay supervision
6. SDIV Diverter switch supervision
7. SFIL Insulating liquid filter supervision
8. SNPS Nitrogen preservation system supervision in this picture)
9. SMDU OLTC motor drive unit supervision
10. STRQ Supervision of OLTC torque
11. SMCI Motor current index supervision
12. SVIN Vacuum interrupter supervision
13. YLTC Tap-changer control
14. SPTR Power transformer supervision
15. SPTW Supervision of winding power transformer
16. SPTC Supervision of core power transformer
17. SIML Supervision of liquid insulation medium
18. ....

Other use cases are: 

• Switchgear
• Underground cable (UGC)
• Overhead line (OHL)
• Vibration monitoring

In case you are interested in supporting this work, let me know.

New Models for Condition Monitoring: IEC 61850-90-3

IEC TC 57 just published a very comprehensive document (draft technical report, 57/1522/DTR) of 150 pages that suggests a lot of new models:

IEC 61850-90-3 TR:
Communication networks and systems for power utility automation –
Part 90-3: Using IEC 61850 for condition monitoring diagnosis and analysis

The CMD (Condition Monitoring Diagnosis) which diagnoses power grid health status has been one of the major issues to improve the reliability of the power system by preventing a potential failure in advance. Since too many different information modeling, information exchange, and configuration techniques for CMD in various forms from many vendors are currently used, they need to be standardized in TC57.

The new document contains a lot of new Logical Nodes and Data Objects like for:

• GIS (Gas Insulated Switchgear)
• Transformer
• Load Tap Changer (LTC)
• Under Ground Cable (UGC)
• Transmission Line (TL)
• Auxiliary Power System

Example of an extension of the very common Model for a tank (KTNK):

LevMaxSet - Maximum level reached setting
LevHlfSet - Half level reached setting
LevMinSet - Minimum level reached setting

LevMax - Maximum level reached
LevHlf - Half level reached
LevMin - Minimum level reached

Voting terminates on 2015-01-16

More to come.

First draft for IEC 61850-90-3 (Condition Monitoring)

IEC TC 57 has recently published a first Draft IEC TR 61850-90-3 – Using IEC 61850 for condition monitoring diagnosis and analysis (57/1372/DC). The document comprises almost 200 pages. Comments are requested by 2013-07-12 at the latest

Domains covered are among others: monitoring of GIS, transformers, load tap changers, underground cables, transmission lines and the auxiliary power system … proposing a few new Logical Nodes and about 200 new Data Objects extending existing Logical Nodes of, e.g, IEC 61850-7-4 Edition 2.

If you are interested in this work, please contact your national mirror committee of TC 57.