IGCTs improve megawatt range power thyristors
The inherent characteristics of the two new silicon switching technologies, Gate Turn-Off (GTO) thyristors and Insulated Gate Bipolar…
Analysis
Generation without transformers: introducing Powerformer
25 Mar 98ABB is claiming a breakthrough with what it describes as the "world's first high-voltage generator". Called the PowerformerTM,…
New system improves IT functionality
25 Mar 98Electricite de France last year signed a contract with Sema Group to undertake the first phase of a…
China muscles in on pumped storage
10 Mar 98Just five years after the contracts were signed, the Shisanling pumped storage plant went into operation, relieving pressure…
Swell opportunities for Japanese hydro
10 Mar 98Japan has upwards of 40 pumped storage plants in operation and new river sites are becoming scarce, but…
Moving Mountains
10 Mar 98A unique photographic exhibition, which chronicles the hydro power exploits of Italian firm Umberto Girola earlier this century,…
Trashrack cleaning the German way
10 Mar 98In the past, trashrack cleaning systems have not been viewed as one of the most important pieces of…
Design by numbers
10 Mar 98The use of a 3D Navier Stokes code for a complete Francis turbine has rendered the numerical test…
Investing in Albania’s hydro riches
10 Mar 98Albania’s per capita hydro potential is one of the largest in Europe. Professor Luan Trola* explains how it…
Flørli finds more power
10 Mar 98At 80 years old, the Flørli plant in southwestern Norway is beginning to show its age, but the…