Investigation of overvoltage on square, rectangular and L-shaped ground grid...
Fault And Pq Monitoring Using Amr Public
1. Low voltage network fault management
and power quality monitoring using AMR
- experiences from first implementation
Petri Trygg
Reseacher
Tampere University of Technology
Department of Electrical Energy Engineering
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
2. Concept of LV network fault and
Power quality monitoring as part of
smart metering
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
3. Low voltage network management
• The main idea is to monitor low voltage network
to improve customer service
• Network alarms: AMR integration to DMS
• blown LV fuses
• broken LV conductor (line or neutral)
• broken MV conductor with or without an earth contact
• over- and undervoltages
• Power quality: Quality module and integration to
QMS->DMS
• Phase voltages
• Unbalance
• Voltage sags and swells
• Flicker
• Total Harmonic Distortion (THD)
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
4. Utility testing: Koillis-Satakunnan
Sähkö
Project partners
Utility: www.ksat.fi
DMS: www.abb.fi
AMR: www.aidon.fi
Quality module: www.electrix.fi
QMS: www.powerq.fi
Source: Google maps
Algorithms and testing:
TAMPERE UNIVERSITY OF TECHNOLOGY
www.tut.fi/set
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
5. Fault Management –
Case: broken zero conductor
• Network coloring can show where it can be
broken
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
6. ABB - DMS 600
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
7. Aidon - AMR
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
8. Electrix - Quality Module
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
9. Power Quality –
Case: night tarif vs phase voltages
• Addition to graphs EN50150 quality reports, comparisons to MV
measurements and voltage sags / swells comparisons
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
10. PowerQ - PQNet
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
11. Thank you!
If you need more information or
publications please contact me:
petri.trygg@tut.fi
Homepage for TUT electrical energy engineering:
www.tut.fi/set/en
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009