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Following the implementation of the antigalloping devices for the 400 kV o/h lines with 2 subconductors per phase, as explained in our paper presented by the occasion of the ICOLIM 2014 in Budapest, a new antigalloping device of the same torsional damper and detuner pendulum type was created and already implemented on some of the 400 kV with 3 subconductors per phase in Romania, in 2015. The device...
The concept of the damping pendulum as torsional damper and detuner (TDD) was created and reported in 1993 by its authors led by Prof. Jean-Louis Lilien from University of Liege-Belgium. Several versions were designed, tested and even used in some minor projects, demonstrating their high capacity to solve the risk of the overhead line conductor galloping with usual frequencies in the range 0.4–0.6...
The line section of the existing 400 kV Gutinas- Brasov is located in a mountain area with rocky soil. Because of the thick ice covering the conductors during the winter times causing the shieldwire breaking the shieldwires had to be dismantled long time ago. Without the shielding screen of the shieldwires the line section was left open to be struck by lightning. To reduce the lightning impact the...
The concept of the damping pendulum as torsional damper and detuner (TDD) was created and reported in 1993 by its authors led by Prof. Jean-Louis Lilien from University of Liege- Belgium.
To calculate the accurate value of the dynamic capacitance of a line under corona surge is very important taking into account that the dynamic capacitance value is influencing strongly the distortion of the surges travelling on a line toward the substations. So, it is possible to know the most probable shape and amplitude of the surge in any point of the line to allow the designers to take into account...
As already demonstrated, the long term negative biological effects are caused by the low frequency magnetic field exposure, but by the left torsion field accompanying the electromagnetic field, as well. Inside their special suites, the workers are protected against the electric field, but not against the magnetic and torsion field. Continuing the researches reported by the occasion of IEEE-ESMO 2006...
This substation evacuates the electric power from the biggest hydropower station on the Danube River (900 MW). Because of the land restrictions in that area this susbstation got a special economical geometric design. Partial disconnection of the busbar sections does not allow painting, since the standard minimum working distances in off-line conditions cannot be respected, due to the special geometry...
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