RENEWAL OF ELECTRIFICATION SYSTEMS

Transcription

1 RENEWAL OF ELECTRIFICATION SYSTEMS Electrification Infrastructure Congress 2012 Ir R. Marcelis Head of Power Engineering Departement October,17 th, London, UK

2 Content // Introduction // Organization chart // Renewals construction: cost effective approach // Half-life refurbishment // Replacing wires: Ideal methods // Assessing technologies // Installing high voltage equipment: best practices Efficient Renewal of Electrification Systems in Belgium 2

3 Organization chart Infrabel Infrabel Chief Executive Officer Luc Lallemand I-AR Managing director Rail Access Ann Billiau I-R Managing director Network Eddy Clement I-I Managing director Infrastructure Luc Vansteenkiste Efficient Renewal of Electrification Systems in Belgium 3

4 Organization chart Infrastructure I-I Managing director Infrastructure Luc Vansteenkiste Efficient Renewal of Electrification Systems in Belgium 4

5 Renewals construction: cost effective approach Infrabel faces an irregular aging of its electrification system 25 kv HSL Efficient Renewal of Electrification Systems in Belgium 5

6 Renewals construction: cost effective approach Infrabel faces an irregular aging of its electrification system 1'200 Pyramide des âges de la caténaire 1' km plus de Simple (3kV) Compound (3 kv) Régularisée (3kV et 25 kv) Somme Efficient Renewal of Electrification Systems in Belgium 6

7 Main lines catenary age in BELGIUM -Map Renewals construction: cost effective approach Efficient Renewal of Electrification Systems in Belgium 7

8 Renewals construction: cost effective approach Infrabel changes its maintenance policy // Our maintenance policy is moving from a continuous process to an intermittent intervention : // Partial or complete renewal instead of like-for-like occasional replacements // Regular maintenance interventions only on critical points : - Power switches - Tensioning devices - Section insulators // Replacement of contact wires after passage of a number of pantographs // Regular monitoring with modern detection tools based on detailed scanning Efficient Renewal of Electrification Systems in Belgium 8

9 Renewals construction: cost effective approach Infrabel changes its maintenance policy // EPFL audited the investment policy of Infrabel and concluded: // Work towards a stronger renewal policy than is the case today. // Avoid budgetary leaps. // Reduce maintenance costs whose valuation will contribute to controlling the cost inflators. Efficient Renewal of Electrification Systems in Belgium 9

10 Renewals construction: cost effective approach Infrabel changes its maintenance policy // EPFL also emphasized the impact on the investment budget for renewal over a long period: Valeur actualisée nette des stratégies (M ) Comparaison des stratégies caténaires Durée de vie résiduelle relative Actuel - 17M /an Basic - 42M /an Medium - 74M /an Ambitious - 86M /an Efficient Renewal of Electrification Systems in Belgium 10

11 Half-life refurbishment Infrabel s new maintenance & renewal policy // Other infrastructure managers follow the same approach What are the right figures? Efficient Renewal of Electrification Systems in Belgium 11

12 Half-life refurbishment Infrabel s new maintenance & renewal policy Efficient Renewal of Electrification Systems in Belgium 12

13 Half-life refurbishment Infrabel s new maintenance & renewal policy Efficient Renewal of Electrification Systems in Belgium 13

14 Half-life refurbishment Year N Year N+20 Year N+40 Year N+60 Year N+80 Electrifica*on Pain*ng (poles) Midlife renewal: Pain*ng (poles) Renewal of polefoot protec*on Renewal of components linked to wiring Pain*ng (poles) End of lifecycle Cat A Cat B Cat C Renewal of contact wires Efficient Renewal of Electrification Systems in Belgium 14

15 Half-life refurbishment Mid-life refurbishment // Changing all components, linked to the wiring // Contact wires // Reparing poles Efficient Renewal of Electrification Systems in Belgium 15

16 Half-life refurbishment Efficient Renewal of Electrification Systems in Belgium 16

17 Replacing wires: Ideal methods Changing contact wires with minimum traffic disruption // Combining: Performant equipment And Strict rules and procedures // Garantees : A safe working environment And An immediate readiness for use. Efficient Renewal of Electrification Systems in Belgium 17

18 Replacing wires: Ideal methods ES600 Cabin Mast Retarding device Unwinding wheels Winding wheels Efficient Renewal of Electrification Systems in Belgium 18

19 Replacing wires: Ideal methods ES600: performances // Max. unwinding tension for every wire : from N to N // Unwinding speed: from 0 to 5 km/h // Number of simultaneously unwinded wires : 2 // Precision on unwinding tension : ± 7 % on desired tension // Max. winding tension for every wire : ~ 5000 N // Winding speed : from 0 to 5 km/h // Number of simultaneously winded wires : 2 // Max. speed progress: 14,5 km/h on a constant stretch Efficient Renewal of Electrification Systems in Belgium 19

20 Replacing wires: Ideal methods Working configurations // The wagon can be used in different configurations : // winding only; // unwinding only; // simultaneous winding and unwinding. Efficient Renewal of Electrification Systems in Belgium 20

21 Replacing wires: Ideal methods Winding only Forward acting Efficient Renewal of Electrification Systems in Belgium 21

22 Replacing wires: Ideal methods Unwinding only Efficient Renewal of Electrification Systems in Belgium 22

23 Replacing wires: Ideal methods Simultaneous winding and unwinding Efficient Renewal of Electrification Systems in Belgium 23

24 Replacing wires: Ideal methods Changing contact wires with minimum traffic disruption // Critical success factors : // Guaranteed quality of each component R3 // Changing contact wires (1500m) demands for a track occupation over about 2km : combining with other traffic disturbing interventions is possible // Good understanding and a good execution of the working instructions by the Efficient Renewal of Electrification Systems in Belgium 24

25 Assessing technologies Problem droppers // Dropper cable (Cu ETP) breaks early due to low fatigue resistance. // Fatigue test according to EN : cable breaks after << cycles demanded. Efficient Renewal of Electrification Systems in Belgium 25

26 Assessing technologies Solution // Cu ETP cable changed into BzII cable (CuMg) // Same type of dropper clamp used Results : // Fatigue test according to EN50119 : cable still intact after cycles // Lower conductibility (70% IACS) causes no problem Efficient Renewal of Electrification Systems in Belgium 26

27 Installing high voltage equipment: best practices Changing a substation with a minimum traffic disruption : the mobile substation Efficient Renewal of Electrification Systems in Belgium 27

28 Modular traction substation 3 kv DC Installing high voltage equipment: best practices Minimal lay-out: sectioning post // One 3kV container // One week for installation This lay-out: MV-substation // Two weeks for installation Maximal lay-out: MV-substation // 4 transformers 6,9 MVA // 16 outgoing feeders 3 kv // Three weeks for installation Efficient Renewal of Electrification Systems in Belgium 28

29 Installing high voltage equipment: best practices Modular traction substation 3 kv DC Unit Contents Number 3 kv container 8 outgoing feeders 3 kv 4 Rectifier-container 1 rectifier 6,5 MW 4 Transformer kv transformer 6,9 MVA kv transformer 6,9 MVA 4 70 kv transformer 6,9 MVA 2 MV-container 36 kv GIS switchgear with 7 bays 1 HV-container 70 kv GIS switchgear with 4 bays 1 Efficient Renewal of Electrification Systems in Belgium 29

30 Installing high voltage equipment: best practices Modular traction substation 3 kv DC Efficient Renewal of Electrification Systems in Belgium 30

31 ? QUESTIONS Efficient Renewal of Electrification Systems in Belgium 31