Asset Management Techniques Using Smart Grid Sensors. Presented by: Kevin Corcoran, Director - Product Line Management Tollgrade Communications

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1 Asset Management Techniques Using Smart Grid Sensors Presented by: Kevin Corcoran, Director - Product Line Management Tollgrade Communications

2 2 Asset Management Monitoring $49B Cumulative Global Market Through 2023

3 3 Asset Management Investment Key Drivers Asset Management Objectives: Maximize asset utilization and lifetime, manage risks Timely maintenance and upgrades to meet demand and avoid outages driven by equipment failures Key Drivers: Reduce catastrophic events Maximize network performance and increase efficiency Reduce unplanned and planned outage costs Reduce truck rolls Condition-based rather than time-based maintenance Improved safety

4 4 Smart Grid Sensing Use Cases and Solutions Coordination between departments Enabled by insightful data and analytics Operations Smart Grid Sensor Data & Analytics Asset Management Engineering

5 5 North America Use Case Trends Predictive Maintenance Substation Monitoring Cap Bank Monitoring

6 6 Preventative Maintenance Use waveforms to prevent outages and respond to problems: Vegetation growth Failing underground cables 10 customer complaints of blinks over 2 months 3 troubleman visits, no problem found UG cable subsequently failed, 17 customers affected 6 fault current events logged. Could be leveraged to characterize and troubleshoot root cause of complaints Example of waveforms from failing underground cable

7 7 Preventative Maintenance Multiple fault current events in short period of time - predictors of potential faults and outages: Animal Contact Three 4kA fault current events over 2 weeks at same location Transformer fuse subsequently blew due to animal contact 38 customers interrupted Example of animal contact at transformer

8 8 Substation Monitoring Identify & prevent transformer and circuit overloads Correct phase imbalance Improve planning with historical load profile data Eliminate truck rolls to read load at substations Record fault current events leading indicators of failure

9 9 Substation Monitoring Smart grid sensors & data analytics Cost-effective alternative to traditional SCADA solutions Substation transformer loading Loading per circuit and per phase Nameplate overload event logging and alarming

10 10 Load Monitoring & Switching Load Switching Better Visibility & Confidence Problem: Tie points are often smaller gauge conductors without monitoring Transfer studies needed to determine risk of switching operation Without monitoring: Conservative estimates based on limited data Solution: With cost-effective smart grid sensor monitoring & reports: Accurate real-time and historical data Improved confidence in approved switching orders

11 11 Capacitor Bank Issues Blown fuses go undetected for months or years Tremendous O&M expense to perform periodic inspections Installing a SCADA enabled capacitor controller is a large undertaking and expensive

12 12 Capacitor Bank Monitoring Inductively powered sensors can alert utility in less than an hour when there is a blown fuse tremendous savings to O&M budget

13 13 Key Considerations to Evaluate Sensors From an asset manager s perspective, this technology will allow us to know immediately if there is a problem that is easy to fix or if it is a serious problem that requires capital investment. -- Ivano Laboricca, Vice President of Asset Management Toronto Hydro

14 14 Key Considerations to Evaluate Sensors Ease of deployment: Weight, ease of install with hot stick Need for pole-mounted equipment, cabling, and 120V secondary power How is it powered and maintained: Inductively, batteries, solar panels? Remote configuration, firmware upgrades, and administrative management tools Communications options: Cellular, wireless mesh, 3 rd party radios/modems Data accuracy: Does it have a pre-packaged analytics package to filter out false-positives? Scalability: When thousands are deployed, will the architecture of the platform scale? Ease of integration into SCADA, Historian, and DMS: Has the sensor vendor been able to integrate with back-office systems? How long did integration take?

15 15 Thank You! For more information: Substation Monitoring App Guide Cap Bank Monitoring App Guide Preventative Maintenance Whitepaper or visit