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Lessons learned from a multi-million dollar, state-of-the-art distribution automation system upgrade project at California State University Fresno (OP038) Erik Brandstaedter – G&W Electric Co. Jeff Prickett – California State University Fresno August 31, 2016, Raleigh, NC
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AGENDA
FRESNO STATE QUICK FACTS REASONS FOR UPGRADE UPGRADE GOALS PROJECT TEAM UPGRADE RESULTS LESSONS LEARNED
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FRESNO STATE QUICK FACTS
• 1 of 23 campuses in California State University system
• Central California • 388 acres
Main Campus • 1,011 acres
University Farm • 24,136 students /
2,334 staff (2015) 3
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REASONS FOR UPGRADE
• Aging electrical infrastructure, installed in 1960s
• Operator safety concerns • Mixed electrical systems of
4.16kV and 12kV • Capacity issues due to
campus growth and new buildings
• Major outages on somewhat regular basis every 6-12 months
• Long restoration times anywhere between 8-72 hours
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REASONS FOR UPGRADE
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01/01/2013: Failed main switch leads to campus-wide, 3-day outage
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UPGRADE GOALS
• Increase system reliability • Improve operator safety • Reduce power restoration times • Implement future-proof solution to
accommodate campus growth • Add remote monitoring and control
capabilities • Deliver turnkey solution
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PROJECT TEAM
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UPGRADE RESULTS OVERVIEW
• 12kV loop feeder distribution system with 4 distribution loops + spare
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UPGRADE RESULTS NEW 12kV OPEN LOOP SYSTEM
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UPGRADE RESULTS OVERVIEW
• 12kV loop feeder distribution system with 4 distribution loops + spare
• Qty. 32 padmount switches with relays for protection and control
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UPGRADE RESULTS PADMOUNT SWITCHES
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UPGRADE RESULTS OVERVIEW • 12kV loop feeder distribution system
with 4 distribution loops + spare • Qty. 32 padmount switches with relays
for protection and control • New main switchgear building
– Arc-resistant, metal-clad 12kV switchgear with feeder protection relays
– Control cabinets with redundant RTU and substation computer for HMI
• Qty. 60 manholes • Qty. 68 12kV building transformers
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UPGRADE RESULTS MAIN SWITCHGEAR BUILDING
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UPGRADE RESULTS 12kV SWITCHGEAR & CONTROLS
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UPGRADE RESULTS COMMUNICATIONS & CONTROLS
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UPGRADE RESULTS HUMAN MACHINE INTERFACE
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UPGRADE RESULTS STATE-OF-THE-ART SOLUTION
• Open loop automation scheme with FLISR and LOV functionality Reduces power restoration times
from hours and days to seconds • Remote monitoring and control via HMI
from substation building and office Improves operator safety
• Best-in-class components Increases system reliability
• Communication via multi-mode fiber ring using IEC 61850 and GOOSE messaging Open protocol supports future-proof solution
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LESSONS LEARNED COORDINATION & PLANNING • Project specifications vs. end-user
expectations • Construction drawings with
dimensions for padmount switches and transformers – Bolt-down locations and space for
control cabinets • Planning for commissioning, testing,
start-up – Outage schedules
• Factory Acceptance Test (FAT) 18
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LESSONS LEARNED COLLABORATION & COOPERATION
• Power for switch controls –Generators vs. energizing loops
• Availability of test sets –Current and voltage injections
• Operator training
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LESSONS LEARNED
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