continuous monitoring on the sse networks … monitoring on the sse networks transmission system ......
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Continuous Monitoring on the SSE Networks Transmission System The Need for Standards, Specifications & Innovation
Dr. Gerry Cleary, Scottish & Southern Electricity Networks
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10th Universities High Voltage Network Colloquium
18th - 19th January 2017, GCU, Glasgow, Scotland
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Dr. Gerry Cleary, January 2017
Continuous Monitoring on the SSE Networks Transmission System
The Need for Standards, Specifications & Innovation
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Career History
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Dates Experience Description
2000-2003 R&D – University of Strathclyde
Partial Discharge Detection in Power Transformers using UHF Monitoring
2003-2004 ScottishPower Secondment - Plant Monitoring on the ScottishPower Transmission Network
2004 -2015 Power Systems Project & Consultancy Services (PCS), Hyder & Arcadis
Fast Transient Analysis & Insulation Co-ordination Studies, Harmonic Studies and Earthing Measurement & Design
2015-Present SSE Networks Technical Standards Engineer - Standards, Specifications & Innovations
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Agenda
Safety- Priority - if it is not safe we don’t do it
Role of Standards, Specifications and Innovations Team
Why Innovate?
Advanced Technologies on the SSE Transmission Network
Overview of Caithness – Moray HVDC Scheme
Continuous Monitoring on the SSE Networks - Transmission System
Case Study: Keith Substation Partial Discharge Monitoring Project
Next Steps
Q&A
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Need for Standards, Specifications & Innovations
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Source: IE&T, November 2016
Standards
Specifications
Innovations
Stakeholder Engagement
Clear Definition
Level of Detail
Why Innovate?• Responsibility to Deliver Power and Manage Transmission System
• Provide Value for the customer
• Regulated Industry Encourages Innovation
(RIIO: Revenue = Incentives + Innovation + Outputs)
Safety
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Site Practicalities – Specification & Discussion are Key
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Port Glasgow – Greenock Dry Dock: Pipe Laying Ship
Optioneering
Network Reinforcement: System Planning
Site Selection: Substn. A & B
Route Selection: Subsea Surveys & Third Parties
Safety, Environment & Legal
Specification (Cable)
Installation & Mechanical Protection
Commissioning, On-Line Monitoring & Repair
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Some Examples of Advanced Technologies on the SSE Network
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Gas Insulated Switchgear
Composite Poles for Overhead Lines
SVC (Static VArCompensator)
MSCDN (Mechanically Switched Capacitor Damping Network)
HVDC: Caithness - Moray
Gas Insulated Busbar
Subsea Cable Circuits
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Subsea Cable Transmission Circuits• System Design – System Planning
• Accurate Specification is Critical – Safety, Logistics, Cost, Performance
• Stakeholders: Electrical, Civil, Environmental, Operational, Consultants, Contractors & Other
• Suite of Specifications: from Subsea Cable Surveys, Cable System Design, Installation, Testing & Maintenance
• Operation & Repair of Emerging Technologies
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References[1] SSE Press Release, Keeping the Lights On.[2] Nexans, O Angoulevant, Offshore Cables
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Overview of HVDC (Caithness-Moray )
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References[1] Electrical Engineering Portal, Costs of HVDC Transmission[2] ABB, HVDC Technical Brochure
Indicative distances -to be confirmed on a per project basis
Potential Advantages Some Challenges
[1] Reduced Visual Impact [1] Rapidly Changing Technology
[2] Control (Frequency, Power Flow & Stability) [2] Difficult to Standardise
[3] Reduced Short Circuit Currents on AC System [3] Cost of Converter Stations
[4] Connection of Asynchronous Grids [4] Operation & Maintenance
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Overview of Blackhillock Substation
• ~£1.1B Investment, ~100 miles of cable
• 400kV (GIS), 132kV (GIS), 275kV (AIS), BOWL (Offshore Wind)
• HVDC Converter Station
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References[1] Blackhillock Substation – Early Construction Stage
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Partial Discharge (PD) Testing & Continuous Monitoring
PD Testing at Commissioning
PD Testing: Initial Site Investigation
PD Monitoring: Milton of Craigie, Keith & Tealing Substations
Potential for Further PD Monitoring?
Gas Monitoring
Distributed Temperature Sensing (DTS): Kintyre – Hunterston Subsea Cable
Fault Recorders
Harmonic Recorders
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Case Study: Keith Substation Partial Discharge Monitoring Project
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Site Selection
Substation Wide Monitoring
HFDE, Elimpus & HVPD
Acquisition of PD Signals
Asset Management
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Next Steps:
Gather Lessons Learned
Specification Refinement
Interaction of AC & DC Systems
Impact of Long Subsea Cable Circuits
Operation & Repair of Emerging Technologies
Condition Monitoring – Telecommunications Infrastructure
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Any Additional Questions & Answers?
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