RENEWAL OF ELECTRIFICATION SYSTEMS Electrification Infrastructure Congress 2012 Ir R. Marcelis Head of Power Engineering Departement October,17 th, London, UK
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
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
Organization chart Infrastructure I-I Managing director Infrastructure Luc Vansteenkiste Efficient Renewal of Electrification Systems in Belgium 4
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
Renewals construction: cost effective approach Infrabel faces an irregular aging of its electrification system 1'200 Pyramide des âges de la caténaire 1'000 800 km 600 400 200 0 plus de 60 55-60 50-55 45-50 40-45 35-40 30-35 25-30 20-25 15-20 10-15 5-10 0-5 Simple (3kV) Compound (3 kv) Régularisée (3kV et 25 kv) Somme Efficient Renewal of Electrification Systems in Belgium 6
Main lines catenary age in BELGIUM -Map Renewals construction: cost effective approach Efficient Renewal of Electrification Systems in Belgium 7
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
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
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 ) 0-200 -400-600 -800-1000 -1200-1400 -1600-1800 Comparaison des stratégies caténaires 2013 2025 2040 2025 2040 2025 2025 2040 2040 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 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
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
Half-life refurbishment Infrabel s new maintenance & renewal policy Efficient Renewal of Electrification Systems in Belgium 12
Half-life refurbishment Infrabel s new maintenance & renewal policy Efficient Renewal of Electrification Systems in Belgium 13
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
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
Half-life refurbishment Efficient Renewal of Electrification Systems in Belgium 16
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
Replacing wires: Ideal methods ES600 Cabin Mast Retarding device Unwinding wheels Winding wheels Efficient Renewal of Electrification Systems in Belgium 18
Replacing wires: Ideal methods ES600: performances // Max. unwinding tension for every wire : from 3.000 N to 20.000 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
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
Replacing wires: Ideal methods Winding only Forward acting Efficient Renewal of Electrification Systems in Belgium 21
Replacing wires: Ideal methods Unwinding only Efficient Renewal of Electrification Systems in Belgium 22
Replacing wires: Ideal methods Simultaneous winding and unwinding Efficient Renewal of Electrification Systems in Belgium 23
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
Assessing technologies Problem droppers // Dropper cable (Cu ETP) breaks early due to low fatigue resistance. // Fatigue test according to EN 50119 : cable breaks after << 2.000.000 cycles demanded. Efficient Renewal of Electrification Systems in Belgium 25
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 2.000.000 cycles // Lower conductibility (70% IACS) causes no problem Efficient Renewal of Electrification Systems in Belgium 26
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
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
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 10 15 kv transformer 6,9 MVA 2 30 36 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
Installing high voltage equipment: best practices Modular traction substation 3 kv DC Efficient Renewal of Electrification Systems in Belgium 30
? QUESTIONS Efficient Renewal of Electrification Systems in Belgium 31