ABB at Cired 2005: Products, systems and services for power quality

1. ABB at Cired 2005: Products, systems and services for power quality Guido Traversa, Head of ABB Medium Voltage Products

2. The scope of ABB Power Technologies

3. Overview: Power Technologies Power Technology Products Power Technology Systems HVProducts MVProducts Transformers Grid Systems Substations Network Management Power Generation • High-voltage and medium-voltage products, distribution and power transformers, product service • Main customers: Utilities, Industries, OEMs, Distributors and EPCs • 2004 revenues: $6.0 bn • Employees: 26,000 Turnkey substations, grid systems, network management systems, power plant control systems, service Main customers: Utilities and Industries 2004 revenues: $3.7 bn Employees: 13,000

4. What is Power Quality? • Power Quality (PQ) is the degree to which the delivery and utilization of electric power affects the performance of electrical equipment and loads • Why is power quality so important? • Different understanding • Utility reports 1 outage in 5 years (utility definition) • Customer sees outages on weekly basis • U.S. survey of industrial customers: • 38% of industrial customers claim the utility is responsible for power quality • 12% are planning to buy power quality equipment • 50% have power quality equipment

5. Power Quality problems • Common power disturbances include: • Voltage fluctuations and flicker • Voltage dips, sags and swells • Overvoltages • Interruptions, harmonics, unbalances and transients • Reactive power excess • Can create problems such as: • Loss of production and revenue • Process interruptions and damage to equipment • Higher energy costs • Loss of data

6. Distribution of voltage disturbances * Source: M. Goldstein and P.D. Speranza % of Total events • Voltage sags provide the vast majority of all power quality problems

7. Power quality equipment for utilities and industries • Overall system reliability • Distribution Management Systems / SCADA • Interruptions • High Speed Transfer System (HSTS) • Voltage fluctuations, imbalances and flicker • Static Var Compensation (SVC) and SVC Light • Overvoltages • Surge arresters • Voltage dips • Dynamic voltage restorer (DVR), Integrated power factor control (PFC) • Harmonics • Passive and active filter capacitors

8. High Speed Transfer System (HSTS) • Switch from a faulty main feeder to an auxiliary feeder within 30 -120 ms --> uninterrupted supply for sensitive loads • Long experience in switchgear design and assembly • Optimized system and fast controller • No permanent losses • Breaking fault current • 20,000 + transfer operations • Low investment

9. Comparison of transfer systems HSTS (High Speed Transfer System), SSTS (Solid State Transfer Switches) & MTS (Mechanical Transfer Switch) . SSTS < 1 Cycle High permanent losses  limited applications breaking load current Unlimited transfer operations Power electronics additional c.b. needed very high investment MTS (classical) Transfer time > 100ms up to seconds No permanent losses breaking fault current 20.000+ transfer operations Non- optimized, conventional controller low investment HSTS 30ms No permanent losses breaking fault current 20.000+ transfer operations optimized system, fast controller low investment

10. Static Var Compensator (SVC) technology • SVCs compensate reactive power in a dynamic way and minimize voltage variations • Conventional SVC: Thyristor valve is controlled once per half-period ABB innovation: • SVC Light: IGBT valve is controlled >10 times per half-period IGBT modules

11. Electric Arc Furnaces: Strongly fluctuating reactive power consumption Nonlinear load on the grid A large source of voltage flicker, harmonics, and voltage unbalance High speed trains Voltage unbalance due to large single phase traction load Grid connection of offshore wind farms Output power fluctuates depending on wind speed SVC applications In 2005, ABB registered $30 million in orders for SVCs in steel mills 100 percent increase to 2004 period ABB will present a paper on SVC application on Thursday, June9th at 11 a.m.

12. Surge arresters • A complete surge arresters portfolio from low voltage to high voltage Low voltage up to 1kV LOVOS Medium voltage up to 44kV POLIM High voltage GIS up to 800kV AZ High voltage AIS 44 - 800kV EXLIM/ PEXLIM HVDC, High energy- applications EXLIM, MXE ABB will present a paper on surge arresters for railway applications on Wednesday, June 8th (Plenary Session S2)

13. ABB Network Manager/SCADA Real-time monitoring, control, and operations of T&D networks and generation plants ABB unveils release 2 at Cired Enhanced operational reliability Enhanced cyber security Updated distribution management system functionality Real-time integration of distribution information Network Manager – release 2 is launched

14. Conclusion At Cired 2005, ABB displays products, systems and services which enable power quality for our utility and industry customers • ABB offers a complete range of products and solutions for every application, from high voltage network down to low voltage load

15. A global leader in power and automation technologies that enable utility and industry customers to improve their performance while lowering environmental impact