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ON-LINE ESTIMATION AND LOCATION OF NON-TECHNICAL LOSSES IN A DISTRIBUTION SYSTEM

ON-LINE ESTIMATION AND LOCATION OF NON-TECHNICAL LOSSES IN A DISTRIBUTION SYSTEM. A. ILO, J. Koppensteiner, M. Reischböck Siemens. P. Parra, H. Socorro, L. Rodriguez, T. Romero ENELVEN. R. Cespedes KEMA Consulting. Losses. Technical Losses

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ON-LINE ESTIMATION AND LOCATION OF NON-TECHNICAL LOSSES IN A DISTRIBUTION SYSTEM

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  1. ON-LINE ESTIMATION AND LOCATION OF NON-TECHNICAL LOSSES IN A DISTRIBUTION SYSTEM A. ILO, J. Koppensteiner, M. Reischböck Siemens P. Parra, H. Socorro, L. Rodriguez, T. Romero ENELVEN R. Cespedes KEMA Consulting

  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

  3. Revenue lost • Technical Losses 3-6% • Non-technical losses • Mexico 10-20% • South America 10-16 % • India 20 – 40 % • USA 0.5-3.5% (but $1 – and $10 – billion)

  4. What can be done ?

  5. Distribution Management System in combination with meter readings tracks down week points

  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

  7. Non-technical losses • SCADA Meters • Read meters (billed energy) • Technical losses

  8. Non-Technical losses in feeder level EBI 10.09.02 – 16.10.02 Feeder Name Non-Technical losses Eval. Days (EBI days) Transformer list [kWh] [%] Alparos 5487 23 36 (36) Tereal 5300 25 35 (36) Helui 4900 21 36 (36) Non-technical losses

  9. Distribution transformers with highest non-technical losses. Feeder: Alparos EBI 10.09.02–16.10.02 Distribution transformer name (TA) Non-technical losses [kWh] [%] alpa/24ds/traf1 759 3.2 alpa/24ds/traf2 617 2.6 alpa/24ds/traf3 601 2.5 Non – technical losses

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