1. PQ Monitoring with Smart Meters for Condition Based Maintenance on Distribution Systems Mario TREMBLAY Hydro-Québec – Canada tremblay.mario@ireq.ca Steve CZECH Hydro-Québec – Canada czech.steve@hydro.qc.ca Denis VALIQUETTE Hydro-Québec – Canada valiquette.denis@ireq.ca Tremblay – Canada – Session 2 – 0509

2. Frankfurt (Germany), 6-9 June 2011 PQ Monitoring with Smart Meters for Condition Based Maintenance on Distribution Systems What are you talking about ? A condition based maintenance (CBM) system: MILE – Maintenance Intelligente de Lignes Électriques A new fault location technique: VDFL – Voltage Drop Fault Location + Tremblay – Canada – Session 2 – 0509

3. Frankfurt (Germany), 6-9 June 2011 CBM in distribution system with MILE Acting before failure Why? Monitoring and locating Non Persistent Faults How? Reduced outage frequency, improved reliability and productivity What are the benefits? The distribution line in its entirety considered as a major equipment What equipments? Incipient faults caused by trees, insulator flashovers, loose tie wires, etc. What we are looking for? Tremblay – Canada – Session 2 – 0509

4. Frankfurt (Germany), 6-9 June 2011 What is VDFL ? Patent Pending  Distributed PQ Monitors 4 per feeder (HQ study) 4 per feeder (HQ study) Minimum of 2 Minimum of 2  Voltage Drop Triangulation Faulty lateral tap indentified … Faulty lateral tap indentified … Fault located …………………………………... Fault located …………………………………... Voltage fault provided ……………… Voltage fault provided ………………  No measurement calibration needed  No need for accurate time basis Centralised processing of signal synchronisation Centralised processing of signal synchronisation Tremblay – Canada – Session 2 – 0509

5. Frankfurt (Germany), 6-9 June 2011 VDFL typical PQ monitoring installations Tremblay – Canada – Session 2 – 0509

6. Frankfurt (Germany), 6-9 June 2011  Has been proven to be accurate Fault located within +/- 162m 50% of time Fault located within +/- 162m 50% of time  Gives a reduced set of possible fault locations The zone to patrol is considerably reduced The zone to patrol is considerably reduced Easier to locate non persistent faults Easier to locate non persistent faults  Provides the voltage fault amplitude Helps to identify the cause of faults before sending crews Helps to identify the cause of faults before sending crews  Supplies valuable online information Provides quick in office PQ analysis without displacement Provides quick in office PQ analysis without displacement  Uses Smart Grid infrastructure On line PQ monitors will be commonly available On line PQ monitors will be commonly available Why use VDFL technique ? Tremblay – Canada – Session 2 – 0509

7. Frankfurt (Germany), 6-9 June 2011 Feeders Topology Weather Data Outage Data (OMS) Voltage Sag Data DMS MILE System Overview Fault Location Analysis (VDFL and others) Condition Based Maintenance Analysis Fault locationEmail Notification Non persistent fault Identification Fault Type Identification Repetitive Fault Identification Damaged Fuse Identification MILE Systems WEB Interface Tremblay – Canada – Session 2 – 0509

8. Frankfurt (Germany), 6-9 June 2011 Event calendar Non persistent fault analysis Email Topology database error detection MILE WEB Interface Tremblay – Canada – Session 2 – 0509

9. Frankfurt (Germany), 6-9 June 2011 Fault location (14 km from substation) Substation Google Earth EC Called from MILE WEB interface Tremblay – Canada – Session 2 – 0509

10. Frankfurt (Germany), 6-9 June 2011 Wind direction Zoom in 100m Real fault location Excessive conductor swing (Gallop) automatically identified by MILE Tremblay – Canada – Session 2 – 0509

11. Frankfurt (Germany), 6-9 June 2011 « Street View » Wind direction Possible excessive conductor swing? Tremblay – Canada – Session 2 – 0509

12. Frankfurt (Germany), 6-9 June 2011 Field follow-up Tremblay – Canada – Session 2 – 0509

13. Frankfurt (Germany), 6-9 June 2011  1200km of conductor  10500 clients Ongoing Project on 7 Distribution Feeders 2 1 3 4 5 6 7 Tremblay – Canada – Session 2 – 0509

14. Frankfurt (Germany), 6-9 June 2011 Extensive CBM practice on the feeder #5 Ranked among the worst feeders of 2006 and 2007 Average of 180 outages annually Tremblay – Canada – Session 2 – 0509

15. Frankfurt (Germany), 6-9 June 2011  Outage frequency reduced by 51%  CAIDI index reduced by 61%  Outages due to unknown causes reduced by 92% The benefits of CBM on the feeder #5 Crew Recall Time Travel to Fault Site Time Fault Location Patrol Time Repair Time Working on non persistent faults = Avoiding Outages Outage time frame Tremblay – Canada – Session 2 – 0509

16. Frankfurt (Germany), 6-9 June 2011 What’s next?  Study for sharing Smart Grid infrastructures Advanced Distribution Automation (ADA) Advanced Distribution Automation (ADA) Advanced Metering Infrastructure (AMI) Advanced Metering Infrastructure (AMI) Volt & Var Control (VVC) Volt & Var Control (VVC)  Development of a global concept of fault location including outage locations for DMS  Industrialisation and commercialisation of MILE / VDFL technology (seeking partners) Call for potential candidates in mid-June Call for potential candidates in mid-June Request for proposal (RFP) in September Request for proposal (RFP) in September Tremblay – Canada – Session 2 – 0509