SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 1 ON-LINE ESTIMATION AND LOCATION OF NON-TECHNICAL LOSSES IN A DISTRIBUTION SYSTEM A. ILO, J. Koppensteiner, M. Reischböck Siemens R. Cespedes KEMA Consulting P. Parra, H. Socorro, L. Rodriguez, T. Romero ENELVEN
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 2 Losses Technical Losses Thermal power generated in the system elements during normal operation. Non-technical losses Defective/incorrect metering Human errors on installation Theft
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 3 Revenue lost Technical Losses 3-6% Non-technical losses Mexico 10-20% South America % India 20 – 40 % USA % (but $1 – and $10 – billion)
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 4 What can be done ?
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 5 Distribution Management System in combination with meter readings tracks down week points
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 6 ON-LINE ESTIMATION AND LOCATION OF NON-TECHNICAL LOSSES IN A DISTRIBUTION SYSTEM Read Meters (billed energy) Different day of months Different periodicity Technical losses Calculated from on-line power flow
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 7 Non-technical losses SCADA Meters Read meters (billed energy) Technical losses
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 8 Non-technical losses Non-Technical losses in feeder level EBI – Feeder Name Non-Technical losses Eval. Days (EBI days) Transformer list [kWh][%] Alparos (36) Tereal (36) Helui (36)
SIE_Ilo_A1 Austria Session 3 – Block 2 Barcelona May 2003 SIEMENS 9 Non – technical losses Distribution transformers with highest non-technical losses. Feeder: Alparos EBI – Distribution transformer name (TA) Non-technical losses [kWh][%] alpa/24ds/traf alpa/24ds/traf alpa/24ds/traf