Results 31 to 40 of about 21,667 (162)

Ensuring the Continuity of Power Supply to the On-Board Auxiliary Devices of the Trolleybus through the Recuperation of Kinetic Energy

open access: yesEnergies, 2021
When a trolleybus travels through insulated sections of the overhead contact line, it experiences momentary power interruptions, which adversely affect the vehicle’s on-board auxiliary subassemblies.
Piotr Hołyszko   +4 more
doaj   +1 more source

Model of own harmonic conductor oscillations for tasks of monitoring the status of airline power transmission lines

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2020
The article substantiates the relevance of the inspection of overhead power lines by determining the mechanical loads of the conductors. The conductor sways under the action of external loads and variable internal mechanical loads.
D. A. Yaroslavskiy   +4 more
doaj   +1 more source

Security‐constrained active power curtailment considering line temperature and thermal inertia

open access: yesIET Generation, Transmission & Distribution, 2023
A novel method is introduced to determine cost‐optimized active power curtailment (APC) of renewable energy sources (RES) considering weather‐dependent dynamic line rating (DLR).
Roman Bolgaryn   +3 more
doaj   +1 more source

Distribution of currents and voltages of the "resonant" frequencies along the overhead power lines of 6 - 35 kV level voltageinsingle-phase ground fault mode

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Paper show methodic of determine of place of single-phase ground fault with intermittent arc on the overhead power line. The informative signs of single-phase ground fault place are determine by values of voltage of the «resonance» frequencies of zero ...
A. I. Fedotov   +2 more
doaj   +1 more source

The method for ice detection on wires of air-lines

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
A new method for ice detection on wires of air-lines, including transmission by wire overhead line sine wave frequency and amplitude stable and fixing the level of the RF signal.
YU. V. Piskovatskiy, D. F. Gubaev
doaj   +1 more source

Influence of Geomagnetic Disturbances in the Polar Regions on the Reactive Power Transmissions Mode on the Airline

open access: yesРоссийская Арктика, 2020
Analytical expressions are obtained for determining reactive power at the beginning and at the end of an intersystem overhead line, taking into account the parameters of the magnetization branches of power transformers, which allow one to take into ...
Aleksey A. KUVSHINOV   +2 more
doaj   +1 more source

Atmospheric Sensors and Energy Harvesters on Overhead Power Lines [PDF]

open access: yesSensors, 2018
We demonstrate the feasibility of using novel, small energy harvesters to power atmospheric sensors and radios simply attached to a single conductor of existing overhead power distribution lines. We demonstrate the ability to harvest the required power for operating multiple atmospheric and power-system sensors, together with short-range radios that ...
Richard M. White   +3 more
openaire   +2 more sources

DEVELOPMENT OF SENSOR SYSTEM FOR MONITORING AND CONTROL OF QUANTITATIVE FREEZING FOR OVERHEAD LINES POWER

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Currently, the acute problem of timely inspection of overhead power lines. At the same time, one of the main tasks is to monitor freezing to overhead power lines.
D. A. Yaroslavskiy, M. F. Sadykov
doaj   +1 more source

COMPOSITE SUPPORTS OF OVERHEAD POWER LINES

open access: yesΛΌГOΣ МИСТЕЦТВО НАУКОВОЇ ДУМКИ, 2020
The article considers the feasibility of using composite supports during the replacement of overhead power lines, analyzes the relevance of these technologies. The advantages of composite overhead power line towers for construction, modernization and restoration work over traditional wooden and metal towers are substantiated.
openaire   +1 more source

Proximity to overhead power lines and childhood leukaemia: an international pooled analysis [PDF]

open access: yesBritish Journal of Cancer, 2018
Although studies have consistently found an association between childhood leukaemia risk and magnetic fields, the associations between childhood leukaemia and distance to overhead power lines have been inconsistent. We pooled data from multiple studies to assess the association with distance and evaluate whether it is due to magnetic fields or other ...
Amoon A   +25 more
openaire   +10 more sources

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