Choisissez votre région et votre langue

Global
Argentina
Australia
Austria
Bahrain
Brazil
Bulgaria
Canada
Chile
China
Colombia
Czech Republik
Denmark
Egypt and North Africa
Finland
France
Germany
Greece
Hungary
India
Indonesia
Iraq
Ireland
Italy
Japan
Jordan
Kuwait
Malaysia
Mexico
New Zealand
Norway
Oman
Pakistan
Panama
Peru
Philippines
Poland
Portugal
Qatar
Saudi Arabia
Singapore
Slovakia
South Africa
South Korea
Spain
Sweden
Switzerland
Taiwan, China
Thailand
Türkiye
Ukraine
United Arab Emirates
United Kingdom
United States
Vietnam
English
Spanish
English
German
English
Portuguese
English
English
French
Spanish
Chinese
Spanish
English
English
English
English
French
German
English
English
English
English
English
Italian
Japanese
English
English
English
Spanish
English
English
English
Spanish
Spanish
English
Polish
English
English
English
English
English
English
English
Spanish
Swedish
German
French
Italian
English
English
English
English
English
English
English
English

Menu

Customer Success Story

Barking, Singlewell, Sellindge

SVCs for load balancing and trackside voltage control

A total of seven Hitachi Energy Static Var Compensators (SVC) have been supplied to High-Speed 1 (HS 1), a 108 km high-speed rail line between London and the Channel tunnel at Dover which was formerly known as the Channel tunnel rail link (CTRL). With this link in operation, it is possible to travel between London and Paris in just over two hours at a maximum speed of 300 km/h.

Similarly, the link reduces travel time between London and Brussels to about two hours.

The railway system is designed for frequent operating of high speed trains but also for slower freight and commuter traffic. Modern trains may have power ratings in the range of 10 MW, thus the power feeding system must be designed for large fluctuating loads. The traction feeding system is a modern direct supply of 50 Hz, 2x25 kV voltage. An auto transformer scheme is used, giving a low voltage drop along the traction lines. Direct transformation from the power grid via transformers connected between two phases is used.

Each one of three traction feeding points between London and the Channel Tunnel is supported by Static Var Compensators. Six of these SVCs are mainly for voltage support and the seventh is for load balancing.

Main data
System 7 SVCs 
Commissioning year: 2000-2002
Rated voltage 25 kV/1-phase and 33 kV/3-phase 
Rated power  -5/+40 Mvar  to -80/+170 Mvar
SVC purposes Dynamic voltage support and Dynamic load balancing