Magnetic Field Assessment in the Proximity of High Voltage Power Station Equipment

Frigura-Iliasa, Mihaela; Baloi, Felicia; Olariu, Adrian F.; Petrenci, Razvan

doi:10.1109/epe.2019.8778197

Cited by 1 publication

(1 citation statement)

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“…Frequency Theoretically, there could be a combination of geometry and operating parameters for high-voltage power lines, which result in a higher electric field than the first limit [18][19][20][21]. In the magnetic flux density, such problems do not occur in the general public [22,23]. Exceeding the limit value can occur when linemen are in the vicinity of the line, such as climbing on the tower, working on the de-energized part of a double-circuit power line, or in the case of live working maintenance [24].…”

Section: Exposurementioning

confidence: 99%

Dynamic Line Rating—An Effective Method to Increase the Safety of Power Lines

Rácz

Németh

2021

Applied Sciences

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Exceeding the electric field’s limit value is not allowed in the vicinity of high-voltage power lines because of both legal and safety aspects. The design parameters of the line must be chosen so that such cases do not occur. However, analysis of several operating power lines in Europe found that the electric field strength in many cases exceeds the legally prescribed limit for the general public. To illustrate this issue and its importance, field measurement and finite element simulation results of the low-frequency electric field are presented for an active 400 kV power line. The purpose of this paper is to offer a new, economical expert system based on dynamic line rating (DLR) that utilizes the potential of real-time power line monitoring methods. The article describes the expert system’s strengths and benefits from both technical and financial points of view, highlighting DLR’s potential for application. With our proposed expert system, it is possible to increase a power line’s safety and security by ensuring that the electric field does not exceed its limit value. In this way, the authors demonstrate that DLR has other potential applications in addition to its capacity-increasing effect in the high voltage grid.

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