Topic 1: Progress in the understanding of physical phenomena and - PowerPoint PPT Presentation

1.2 - JIC HVDC 16 Topic 1 Gockenbach Topic 1: Progress in the understanding of physical phenomena and materials for use in DC Professor Dr Ing Ernst Gockenbach , Leibniz Universität Hannover, Germany 1 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

§ Development status, roadmap, characterisation and criteria of choice for new materials including thermoplastic insulation, nanotechnology, XLPE low by-product § Environmental impacts of materials, carbon footprint, pollution and recyclability § Understanding of ageing mechanisms and polarity reversals constraints § Evaluation of electrical fields at triple points § Behaviour of DC cables operated in AC for flexible electrical systems 2 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Development status, roadmap, characterisation and criteria of choice for new materials including thermoplastic insulation, nanotechnology, XLPE low by-product Questions and comments New materials available? Voltage limits? Experience? 3 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

kV/mm Source: Kabelanlagen für Hoch- und Höchstspannung 16 Electric field stress Mean field stress 12 Conductor field stress E. Peschke, R. v. Olshausen 8 4 0 10 20 30 60 110 132 150 220 275 kV 500 Operating AC voltage 4 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Source: Kabelanlagen für Hoch- und Höchstspannung E. Peschke, R. v. Olshausen 5 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Source: Furukawa Review, No. 25, 2004, S. 47 - 52 7 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Source: IEEE Electrical Insulation Magazine, November/December 2007 — Vol. 23, No. 6, p. 11 -19 9 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Environmental impacts of materials, carbon footprint, pollution and recyclability Questions and comments Fluid impregnation material? Recycling of XLPE? 10 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Understanding of ageing mechanisms and polarity reversals constraints Questions and comments Ageing: thermal, electrical, mechanical, chemical? Polarity reversal: space charges? 11 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Long time behaviour 3 10 Electrical breakdown Erosion breakdown kV mm 2 10 E D XLPE 20 °C 10 E N • t = const 1 3 -6 -3 6 9 10 10 1 10 10 s 10 1s 1d 30a time 12 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Ageing parameter and life time volume Electric field Time Temperature 13 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

50 Hz AC Cable De-energized AC Cable - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 ms - + + + - - + - + + + - - + - - - + + + + - + - - - + + + - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - Source: ETG HVDC Colloquium, Berlin, 2011 - - + - - + - - - + - + - + + + - + - + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10 ms - + + + - - + + - - - + + + - - - - DC Cable + - + - + - + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + + + + - + - + - + - + - + - + + + + + + + + + + + + + + + + + + + + + + 15 ms - + + - - - - + - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - - + + + - + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - + - + - + - + - + - + - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - + + + - + - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - + + + + + + + + + + + + + + + + + + + + + + + + + Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Evaluation of electrical fields at triple points Questions and comments Specific for cables? Methods? 15 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Behaviour of DC cables operated in AC for flexible electrical systems Questions and comments System voltage change AC – DC - AC? What are the determining parameters? 16 Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Topic 1: Progress in the understanding of physical phenomena and - PowerPoint PPT Presentation

1.2 - JIC HVDC 16 Topic 1 Gockenbach Topic 1: Progress in the understanding of physical phenomena and materials for use in DC Professor Dr Ing Ernst Gockenbach , Leibniz Universitt Hannover, Germany 1 Workshop Jicable HVDC16, Friday,

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Topic 1: Progress in the understanding of physical phenomena and - PowerPoint PPT Presentation

1.2 - JIC HVDC 16 Topic 1 Gockenbach Topic 1: Progress in the understanding of physical phenomena and materials for use in DC Professor Dr Ing Ernst Gockenbach , Leibniz Universitt Hannover, Germany 1 Workshop Jicable HVDC16, Friday,

COMP31212: Concurrency Topics 2.3: Understanding FSP Topic 2.3: Understanding FSP Outline Topic

Understanding physical and health issues Week 3 Inclusive Education Todays session * 3,2,1

AT ATI TEAS READING REVIEW PART 2 UNDERSTANDING TOPIC QUESTIONS Topic questions on ATI TEAS

Before Y ou Begin, A Visual Guide page 3 Presentation Navigation page 8 S lide S how view

Applications of Topic Models Document Understanding, session 7 CS6200: Information Retrieval

Topic 1: Physical Phenomena, Materials Material Testing: Impact on Type Tests and Routine Tests

3D Understanding Towards Object Manipulation Some Thoughts and Progress Hao Su 3D in CV/CG

Recreating the NSA's MITM Attack 1 Why Should This Topic be Chosen? Goal 1: Understanding how

Gaining a Deeper Understanding of Student Progress Over Time and Achievement Gaps based on the

Sport and Physical Activity Strategy 2017 2021 Update on Progress Dave Stock Principle

Recent Progress in Understanding the DC and RF Reliability of GaN High Electron Mobility

9/15/17 Outline Topic 1.Introduc8on Topic 2. RCS for six key fuels Topic 3.

Understanding NWEA Measures of Academic Progress Inspiring Minds, Empowering Achievement,

Understanding Suicide: Ian Hussey ! PhD student ! Dept of Psychology ! (very little) ! Progress

Self-Awareness: A Game Changing Topic for Cyber- Physical Systems? Game Changing and

S afe Rout es t o S chool: Part nerships &amp; Progress t o Increase Physical Act ivit y Among Y

Three algorithms related to the number-field sieve D. J. Bernstein Thanks to: University of

Geometric approach for 3d interfaces at strong coupling Based on: 2005.05983 with J.J. Heckman,

BA BAO measure rement fro rom joint anal analysi ysis s of f gal galax axies es and and

Widowed stars probe BH kicks Bin C osmos Mathieu Renzo PhD in Amsterdam Collaborators:

NATURE OF TRUE WORSHIP Mark 11:12-19 The Fig Tree MARK 11:12-14 The next day when they came out

God our Father has made all things depend on faith so that whoever has faith will have everything,

The Events The Day Anointing in Bethany; Judas gets upset Saturday Sunday Entry into

Habakkuks Song LESSON 6 Your Response to the Lesson What was most interesting in the Bible

S afe Rout es t o S chool: Part nerships & Progress t o Increase Physical Act ivit y Among Y