Mak Tarnoff

Leverage Your AMI System to
Reduce SAIDI Times and
Improve Member Satisfaction
February 15, 2016
Bill Waters, Tideland EMC
Mak Tarnoff, Aclara
Fault Detection and Localization
“Automatically display outage, identifies fault locations and
verifies restorations in record time”
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Members:
22,474
Miles of Line:
2,569
Meters per Mile
9
Square Miles
2,500
Substations
16
Circuits
43
Winter Peak (MW)
114.8
©2015 Aclara Technologies LLC
Expectations
 Improved member
 Reduced cost
satisfaction
SAIDI
CAIDI
 Improved safety
 Enhanced reliability
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Benefits
 Improved
member
satisfaction
 Faster restoration
 Monitor vacation
and remote sites
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Benefits
 Enhanced reliability
 Improve
 SAIDI – duration of interruption during a specific period of time
 CAIDI – average time required to restore service
 Monitor system performance
SAIDI
Customer minutes of
interruption
Total number of customers
served
CAIDI
Customer minutes of
interruption
Total number of customers
interrupted
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Benefits
 Reduced cost
 Automate processes to
locate faults and meter
outages
 Optimum dispatch of crews
 Path mapping using
automatic detection of
switching events
 Minimize training, IT
support and infrastructure
Real-time access to network
status
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Benefits
 Improved safety
 Reduced patrolling
 Speeds time to
isolation
Localization improves
safety
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Lot’s of Data, but What is the Answer?
Bayes’ Theorem:
Corollary:
Built on a sophisticated statistical inference
algorithm
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Rapid Answer = Continuous Process
 Collects and processes real
time communication data
Compute outage
probabilities
 Computes probability of
outage at every point
 Fault location, localized to
AMI pings
nearest span
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Identify areas of
ambiguity
Example Street View
Green nodes = Customer is powered
Red nodes =
Customer is without power
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Visualize end point status
Before - Status of point,
using system hierarchy on
satellite land-base imagery
After - Outage status of
point, using system
hierarchy on satellite landbase imagery
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Restoration Impacts
 SAIDI – CAIDI
 Fast automatic detection - less than 190 seconds
 Nested outages - less than 60 seconds automatically
 AMI
 Automatic system-wide monitoring, and path mapping
 Performance monitoring
 Satisfaction
 Automatic notification to employees, utility board and
affected members
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Demo
“Automatically display outages, identifies fault
locations and verify restorations in record time”
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Summary - Fault Detection & Localization
 Automatically locates, displays and resolves outages in record
time
 Benefits
 Increases member satisfaction
 Enhances reliability
 Reduces costs
 Improves safety
 Access
 Unified access through desktop and remote devices
©2015 Aclara Technologies LLC
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Thank You
Mak Tarnoff mtarnoff@aclara.com
Bill Waters BillWaters@tidelandemc.com
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