Improving Safety of Works under Induced Voltage Taking Into Account the Asymmetric Operation Mode of the Influencing Line

Currently, the repair and maintenance of overhead lines is necessary to ensure uninterrupted power supply. Analysis of the statistics of electrical injuries shows that accidents during this type of work make up the majority. One of the reasons is the effect of induced voltage on disconnected lines p...

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Bibliographic Details
Published in:	2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE) pp. 1 - 4
Main Authors:	Korolev, I.V., Shcherbacheva, O.S., Zvonkova, N.V., Zavyalova, A.A., Zakrevsky, A.A.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 11-03-2021
Subjects:	Accidents distribution networks electrical safety induced voltage Injuries Maintenance engineering operation on overhead lines Power engineering Power supplies Safety safety of works Wires
Online Access:	Get full text
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Summary:	Currently, the repair and maintenance of overhead lines is necessary to ensure uninterrupted power supply. Analysis of the statistics of electrical injuries shows that accidents during this type of work make up the majority. One of the reasons is the effect of induced voltage on disconnected lines passing near active lines. When the overhead lines are grounded only at the workplace, the electrostatic component is completely removed, but accidents occur during such work.When calculating the capacitive current for three-phase lines, it is necessary to take into account the increase in the number of wires, the phase shift of currents in the influencing line and partial capacitances. The calculation of induced voltages is carried out for symmetric modes of network operation. In practice, it is necessary to take into account the asymmetry at different loads at energy enterprises. It is shown that the asymmetry increases the value of the induced voltage.
DOI:	10.1109/REEPE51337.2021.9388070