Najczęściej występujące uszkodzenia fundamentów słupów linii elektroenergetycznych najwyższych napięć i sposoby ich napraw

The paper consists of the discussion of issues related to the durability of foundations of extra high voltage (EHV) power line poles and possibilities of their renovation. The research part is the diagnostics of selected foundations of the EHV line poles (400 kV) Wielopole–Noszowice. During the on-site inspection, it was found that there are chipping and small surface defects, and in some cases losses of the reinforcement cover without visible pits. Based on the degree of damage, the scope of non-structural repairs and anti-corrosive protection was determined, presenting the next stages of their implementation.

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Study on extra-high voltage power line scatterers in time series SAR

2014 Third International Workshop on Earth Observation and Remote Sensing Applications (EORSA) ◽

10.1109/eorsa.2014.6927847 ◽

2014 ◽

Author(s):

Li Sha ◽

Li Tao ◽

Wang Mingzhou ◽

Hou Ailing ◽

Wu Wenhao ◽

...

Keyword(s):

Time Series ◽

High Voltage ◽

Power Line ◽

Extra High Voltage

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Fault diagnosis in an extra-high voltage power line

2017 IEEE PES PowerAfrica ◽

10.1109/powerafrica.2017.7991243 ◽

2017 ◽

Cited By ~ 1

Author(s):

Oluleke Babayomi ◽

Peter Oluseyi ◽

Nkemdilim A. Ofodile ◽

Godbless Keku

Keyword(s):

Fault Diagnosis ◽

High Voltage ◽

Power Line ◽

Extra High Voltage

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Increasing Stability of Ultra-Long Power Transmissions by FACTS Device Distributed Control

Elektrichestvo ◽

10.24160/0013-5380-2021-1-4-12 ◽

2021 ◽

Vol 1 (1) ◽

pp. 4-12

Author(s):

Andrey N. BELYAEV ◽

◽

Oleg O. PERESLYTSKIKH ◽

Keyword(s):

Transmission Line ◽

High Voltage ◽

Power Transmission ◽

Power Line ◽

Small Signal ◽

Small Signal Stability ◽

Long Distance ◽

Signal Stability ◽

Facts Devices ◽

Extra High Voltage

Steady-state operation modes and stability of a long-distance extra-high voltage transmission line equipped with FACTS devices are studied. The capabilities of increasing the transmitted power limits to a level of more than 30% above the power line surge impedance loading are shown. The effect the coordinated control of FACTS devices has on the power line small-signal stability is analyzed. By incorporating the power transmission full phasor difference feedbacks into the FACTS device control systems it becomes possible to obtain good small-signal stability indices in the entire range of power transmission operation. Tt has been found that a quite moderate response speed is required in measuring, transmitting, and converting such signals. The transient stability of a long-distance extra-high voltage ЛС transmission line under two-phase short-circuit on the power plant buses is calculated, and the need of using additional emergency controls to maintain its stable operation is shown.

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